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1 kilogram-force meter sq. second [kgf · m · s²] \u003d 9.80664999978773 kilogram square. meter [kg · m²]

Initial value

Converted value

kilogram sq. meter kilogram sq. centimeter kilogram sq. millimeter gram sq. centimeter gram sq. millimeter kilogram-force meter sq. second ounce sq. inch ounce-force inch sq. second pound sq. ft lbf ft sq. second pound sq. in lbf in sq. second slug sq. foot

Magnetomotive force

More about moment of inertia

General information

The moment of inertia is the property of a body to resist a change in the speed of rotation. The higher the moment of inertia, the greater this opposition. The moment of inertia is often compared to the concept of mass for rectilinear motion, since mass determines how much a body resists such motion. The distribution of mass over the volume of the body does not affect the rectilinear movement, but has great importance when rotating, since the moment of inertia depends on it.

It is possible to determine the moment of inertia for bodies of simple geometric shape and with constant density using generally accepted formulas. For bodies of more complex shapes, mathematical analysis is used. Depending on how the weight is distributed inside the bodies, two bodies with the same mass can have different moments of inertia. For example, the moment of inertia I for a homogeneous ball, with the same density throughout the volume, is found by the formula:

I = 2mr² / 5

Here m is the mass of the ball, and r is its radius. If you take two balls the same mass, with the radius of the first is twice the radius of the second, then the moment of inertia of the larger ball will be 2² \u003d 4 times the first. In this formula, the radius is the distance from the center of rotation to the point on the body farthest from this center for which the moment of inertia is measured. If we take a cylinder with mass m, which is equal to the mass of one of the balls above, and with distance L from the center of rotation to the most distant point, so that this value is equal to the radius of this ball, then the moment of inertia of the cylinder I will be equal to:

I = mr² / 3

in case the cylinder rotates around its base. The moment of inertia will be equal to:

I = mr² / 12

if the cylinder rotates around an axis passing through its center along its length. With this rotation, the cylinder becomes like a propeller. The second formula can be easily obtained from the first: the radius from the center of rotation to the farthest point is equal to half the length of the cylinder, but since this radius is squared, then 1/2 L (or r) becomes 1/4 L² (or r²). In any case, looking at these formulas, it is easy to see that the shape of the body and even just the displacement of the center of rotation significantly affect the moment of inertia. The moment of inertia plays an important role in sports and mechanics, and it is regulated by changing the mass or shape of objects and even the athlete's body.

In sports

Often, by decreasing or increasing the moment of inertia, it is possible to improve performance in sports. A high moment of inertia maintains a constant rotational speed or helps maintain balance even when the speed is zero. If the speed is zero, then the person or object simply does not rotate. A small moment of inertia, on the other hand, makes it easy to change the rotation speed. That is, decreasing the moment of inertia decreases the amount of energy required to increase or decrease the rotational speed. Moment of inertia is so important in sports that some researchers believe that for exercises that use multiple equipment or sports equipment of the same weight, but different configurations, equipment and equipment with a similar moment of inertia should be selected. This is practiced, for example, in golf: some people believe that using clubs with the same moment of inertia will help the athlete to improve swing, that is, the main hit on the ball. In other sports, athletes sometimes, on the contrary, choose equipment with different moments of inertia, depending on what effect they want to achieve, for example, how quickly they need to hit the ball with a club or bat. Some use sports equipment with a high moment of inertia to increase muscle strength and endurance without adding weight to the apparatus. For example, the moment of inertia of a baseball bat affects how much speed it will give the ball.

High moment of inertia

In some cases, it is necessary that the rotational movement continues and does not stop, despite the fact that the forces acting on the body oppose this movement. For example, gymnasts, dancers, divers, or skaters who spin or turn over on ice or in the air need to continue this movement for a certain amount of time. To do this, they can increase the moment of inertia by increasing body weight. This can be achieved by holding weights during rotation, which are then released or thrown away when such a large moment of inertia is no longer needed. This is not always advisable and can even be dangerous if the load is bounced in the wrong direction and causes damage or injury. Two people can also join hands as they spin, bringing their weights together, and then let go of each other when they no longer need to spin. This technique is often used in figure skating.

Instead of mass, you can also increase the radius from the center of rotation to the point farthest from it. To do this, you can stretch your arms or legs to the sides of the body, or pick up a long pole.

An athlete, such as a diver, may need to increase the moment of inertia before entering the water. When it spins in the air and takes the right direction, it straightens out to stop spinning and at the same time increase the radius and thus the moment of inertia. Thus, its zero rotation speed is more difficult to change, and the athlete enters the water under right angle... This technique is also used by dancers, gymnasts and skaters during dances and exercises in order to land neatly after spinning in the air.

As we just saw, the higher the moment of inertia, the easier it is to maintain a constant rotational speed, even if it is zero, that is, the body is at rest. This can be needed both to maintain rotation, as well as to maintain balance in the absence of rotation. For example, in order not to fall, acrobats who walk on a tightrope often hold a long pole in their hands, thereby increasing the radius from the center of rotation to the point farthest from it.

The moment of inertia is often used in weightlifting. The weight of the discs is distributed over the bar to ensure safety during barbell lifting exercises. If, instead of the barbell, you lift an object of a smaller size, but the same weight as the barbell, for example, a bag of sand or a kettlebell, then even a very small displacement of the ascent angle can be dangerous. If the athlete pushes the kettlebell up, but at an angle, then it can begin to rotate around its axis. The large weight and small radius of the kettlebell means that, compared to a barbell of the same weight, it is much easier to start rotating it. Therefore, if it starts to rotate around its axis, it is very difficult to stop it. It is easy for an athlete to lose control of the kettlebell and drop it. This is especially dangerous if the athlete lifts the kettlebell over his head while standing, or over the chest while lying down. Even if the kettlebell does not fall, the athlete can injure his hands in an attempt to prevent rotation and fall. The same can happen with exercises with a particularly heavy barbell, so the disc attachment for very heavy barbells is flexible. The discs rotate around their axis during the lifting of the bar, and the bar itself remains stationary. The barbells intended for the Olympic Games, which are called Olympic barbells, have exactly this design.

To ensure safety during kettlebell training, it is common to move the center of rotation as far away from the center of the kettle as possible. Most often, the new center of rotation is on the athlete's body, for example, in the shoulder area. That is, usually the kettlebell is not rotated with the hand or around the elbow joint. On the contrary, it is swayed from side to side or up and down around the body, otherwise working with it is dangerous.

Low moment of inertia

In sports, it is often necessary to increase or decrease the rotational speed using as little energy as possible. For this, athletes choose shells and equipment with a small moment of inertia, or reduce the moment of inertia of their body.

In some cases, the overall moment of inertia of the athlete's body is important. In this situation, athletes press their arms and legs against the torso to reduce the moment of inertia during rotation. This allows them to move faster and spin faster. This technique is used in figure skating, diving, gymnastics and dancing. To experience this effect, it is not necessary to engage in one of these sports, you just need to sit in office chair, unwind the seat, putting out your arms and legs, and then press your arms and legs to the body. This will increase the rotation speed.

In other sports, not the entire body of an athlete rotates, but only part of it, for example, a hand with a bat or a golf club. In this case, the weight is distributed over the bit or club so as to increase the moment of inertia. This is also important for swords, both real and wooden swords for training in martial arts, and for any other equipment that athletes twist or spin, including bowling balls. The moment of inertia also affects how heavy the inventory appears during use and how much energy is expended in changing its rotational speed. The lower the moment of inertia, the lighter the inventory usually appears and the faster it can be rotated. This allows the athlete more time to observe the opponent before starting the movement. Sometimes this extra time gives an advantage in sports games, as the athlete can react more quickly to the opponent's movements. In these extra seconds, it becomes easier to predict the trajectory of the opponent, or the ball, for example in tennis and baseball, and to make a more accurate shot.

It should be remembered that at the same speed of rotation of the bat, the one with a higher moment of inertia will transfer more speed to the ball when hitting, although you need to rotate this bat with the expense of more energy. Therefore, a projectile with a low moment of inertia is not necessarily better - in some cases, athletes, on the contrary, prefer projectiles with a high moment of inertia. Such projectiles develop muscles, which in turn helps speed up the reaction.

Golf clubs and tennis rackets usually have moment of inertia information on them, but baseball bats usually don't. Why this is so is unknown, although it is likely related to sports marketing. In any case, if there is no information about the moment of inertia of a sports equipment, then it is worthwhile to try this equipment well before buying, and compare with several others to determine whether it suits you for your purposes.

Do you find it difficult to translate a measurement unit from one language to another? Colleagues are ready to help you. Post a question to TCTerms and you will receive an answer within a few minutes.

In order to find out how many cubic centimeters per gram in a cubic meter per kilogram, you need to use a simple online calculator... Enter in the left field the number of cubic meters per kilogram you are interested in that you want to convert. In the box on the right, you will see the result of the calculation. If you need to convert cubic meters per kilogram or cubic centimeters per gram in other units of measurement, just click on the corresponding link.

What is "cubic meter per kilogram"

Cubic meter per kilogram (m³ / kg) is a physical quantity of the International SI (measurement system) for correct calculation specific volume.

The specific volume is equal to 1 m³ / kg, if the mass is 1 cu. meters of this substance is equal to 1 kg.

What is "cubic centimeter per gram"

Cubic centimeter per gram (cm³ / g) is a unit of measure for specific volume in the system Centimeters - gram - second, or abbreviated CGS.

This system was used before the introduction of the International SI (system of units). The specific volume of a substance is 1 cm³ / g, if the mass of 1 m³ of this substance is 1 g.

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Convert kilogram to m3 and back

Reference data:

Density of water 1000 kg / m3
Density of steel 7800 kg / m3
The density of concrete is 1400 ... 2500 kg / m3
Color density 900 ... 1600 kg / m3
The density of milk is 1027 ... 1033 kg / m3
The density of the oil is 730 ... 1040 kg / m3
Gas density - 750 kg / m3
The density of diesel fuel is 830 ... 860 kg / m3

A list of basic materials and their density are presented in this table.

How do we convert kilogram to cubic meter?

The density of the material depends on the temperature of the medium, see References for exact density data.

Theory:

Mass is a property of a body, which is a measure of the gravitational interaction with other bodies.

Volume is a quantitative characteristic of the space occupied by a body, structure or substance.

Density is a physical quantity defined as the ratio of body weight to body volume.

The relationship between volume and mass is determined by a simple mathematical formula:

V \u003d m / p, where

V is the volume;
m is the mass;
p - density.

solutions:

This simple mathematical operation can be quickly solved through our online program.

To do this, enter the initial value in the corresponding field and click the button.

This page provides a simple web translator for units of kilograms to cubic meters. With this calculator you can convert kilogram to m3 and vice versa with one click.

How to convert kilograms to cubic meters

This web service converts volume values \u200b\u200bfrom one device to another.

In the calculator view, select the desired unit volume, enter its value, specify the units for translation and calculate the accuracy and click "Calculate".

Capacity is the ability of a geometric body, that is, a part of space that is limited by one or more closed surfaces.

Volume is expressed in the number of cubic units that fit into certain containers.

Accepted units of measurement - in SI and its derivatives - cubic meter, cubic centimeter, liter (cubic decimeter), etc. Outside the system - gallon, barrel, bushel.

The word "area" is also used figuratively to indicate a general or current meaning. For example, "demand volume".

In the visual arts, the area of \u200b\u200baction is the illusory transmission of the spatial characteristics of an object depicted by artistic methods.

Frequently used units table:

conversion from export unit (m3 / unit)

acre feet	ac ft	1233.481838
turf (brit.)	bale	0.16365924
turf (oil)	bale	0,158987295
barrel (US dry matter)	bale	0,115628199
barrel (American liquid)	bale	0,119240471
bushel (UK)	bushel	0.03636872
bushel (US dry)	bushel	0.03523907
rope	rope	3,624556364
Cubic legs	ft³	0,028316847
cubic	v3	1.63871E-5
cubic centimeter	cm3	1.0E-6
cubic meter	m³	1
cubic kilometer	cubic km	1000000000
cubic miles	mi³	4168181825
cubic yard	yd³	0,764554858
mixer	from	0,00025
glass (canadian)	from	0,000227305
glass (USA)	from	0,000236588
ounce (Brit. liquid)	or	2.84131E-5
ounce (American liquid)	or	2.95735E-5
gallon (British).	gal	0.00454609
gallon (US dry)	gal	0,004404884
gallon (American liquid)	gal	0,003785412
gil (Brit.)	soldier	0,000142065
gil (USA)	soldier	0,000118294
turf (brit.)	HHD	0.32731848
barrel (US)	HHD	0,238480942
liter	L	0,001
milliliter	ml	1.0E-6
resin (Brit).	pk	0.00909218
resin (US dry)	pk	0,008809768
pints (British).	fri	0,000568261
pint (US dry)	fri	0.00055061
pint (American liquid)	fri	0,000473176
district (UK)	quarts	0,001136523
Quart (US dry matter)	quarts	0,001101221
Quart (American liquid)	quarts	0,000946353
a spoon	tbsp	1.5E-5
spoon (canadian)	tbsp	1.42065E-5
spoon (Brit).	tbsp	1.77582E-5
spoon (USA)	tbsp	1.47868E-5
tsp	TSP	5.0E-6
teaspoon (Canadian)	TSP	4.73551E-6
teaspoon (Brit.)	TSP	5.91939E-6
teaspoon (USA)	TSP	4.92892E-6

Select Wednesday:

Enter the volume in liters:

As you know, a cubic meter is a unit of measure for volume. This fact is generally recognized. The side of such a cube is 1 meter. This indicator is used to determine the volume of containers such as tank, tank or tank.

In any case, volumetric calculations sometimes arise due to problems caused by using a different volume measuring unit - liters. To calculate the amount required to store any substance or to calculate the volume consumed by a liquid, it is also useful to calculate their mass (mass), which usually does not correspond to the number of liters.

How difficult is it to calculate the amount of power?

For storage and transportation of substances such as methane, oil, gasoline, milk, the water tank is protected by a special movement volume, which in practice must be known for cubes, and sometimes in kilograms. Sometimes it is necessary to convert liters to tons.

The formula for calculating the volume for different substances is simple, but in practice they often encounter errors. Therefore, it will not be superfluous if you spend a few minutes and try to use our calculator. After all, a mistake in solving a problem can only be stressful with a low score, in practice, incorrect calculations can lead to the production of capacity with insufficient quantities, and this is an unnecessary waste.

Instructions for using the web calculator

If you want to quickly convert letters to cubes, our online calculator is for you. All you have to do is select the substance, mass and volume from the list for which you have to calculate and, in the appropriate format, enter the number of liters you want to convert to cubes.

How to convert kg to cubic meter

Formula for calculating mass from volume

To calculate the volume of liquid, you can use the simplest formula from school course in physics

V \u003d m / p

where V is the volume of liquid (substances) in liters, m is the mass of the liquid (substance), p is the density of the liquid (substances).

The following density values \u200b\u200bwere used to calculate the calculator from the table below.

Density table of substances

If you have not found the required substance in the proposed list - contact us - we will add.

It would seem to translate kilograms into meters delusional, however in a number technical tasks it is necessary. For such a translation, you need the ability to linear density or ordinary density of the material.

You will need

• knowledge of linear density or density of material

Instructions

1. Units of mass are converted to units of length with the help of a physical quantity called linear density. In the SI system, it has the dimension kg / m. As you can see, this value differs from the traditional density, which expresses the mass per unit volume. Linear density is used for collating the thickness of threads, wires, fabrics, etc., as well as for collating beams, rails, etc.

2. From the definition of linear density, it follows that to convert mass to length, you need to divide the mass in kilograms by the linear density in kg / m. This gives us the length in meters. This mass will be in this length.

3. In the event that we are familiar with the ordinary density with the dimension of kilograms per cubic meter, then to calculate the length of the material that contains the mass, we need to divide the mass by the density, and then by the cross-sectional area of \u200b\u200bthe material. Thus, the formula for the length will look like this: l \u003d V / S \u003d (m / p * S), where m is the mass, V is the volume containing the mass, S is the cross-sectional area, p is the density.

4. In the most primitive cases, the cross-section of the material will have either a round or rectangular shape. The area of \u200b\u200ba circular section will be equal to pi * (R ^ 2), where R is the radius of the section. In the case of a rectangular section, its area will be equal to a * b, where a and b are the lengths of the sides of the section. If the section has a non-standard shape, then in all defined case, it is necessary to find the area of \u200b\u200bthe geometric figure, which is the section.

In a number of tasks, you need to find out how long a given mass is in a piece of material. In such a task, knowing the kilograms, you need to find the meters. Such translation requires knowledge of linear density or traditional material density.

You will need

• linear density or density of the material

Instructions

1. Units of mass are converted to units of length with the help of a physical quantity called linear density. In the SI system, it has the dimension kg / m. This value differs from the traditional density, which expresses mass per unit volume. Linear density is used to collate the thickness of threads, wires, fabrics, etc., as well as collate beams, rails, etc.

2. From the definition of linear density, it follows that to convert mass to length, you need to divide the mass in kilograms by the linear density in kg / m. This gives you the length in meters. This length will contain the given mass.

3. In the event that you are familiar with the ordinary density with the dimension of kilograms per cubic meter, then to calculate the length of the material that contains the mass, you first need to get the volume of the material that contains this mass. To do this, you need to divide the mass by the density. After that, the resulting volume must be divided by the cross-sectional area of \u200b\u200bthe material. Thus, the formula for the length will look like this: l \u003d V / S \u003d (m / p * S), where m is the mass, V is the volume containing the mass, S is the cross-sectional area, p is the density.

4. In trivial cases, the cross section of the material will have either a round or rectangular shape. The area of \u200b\u200ba circular section will be pi * (R ^ 2), where R is the radius of the section. In the case of a rectangular section, its area will be equal to a * b, where a and b are the lengths of the sides of the section. If the section has a non-standard shape, then you need to find the area of that geometric figure in section.

Almost every person has necessarily heard the expression "running meter". For many, this definition remains rather complicated, since it is completely unclear what is the difference between sq. m. from ordinary. What is the conversation going on?

One running meter equals the usual length of one meter.It is used to measure goods that have a specific width, such as linoleum. It is much easier to calculate the cost of a product based on running meters than to calculate the cost per square meter.

For example, you need to purchase a carpet in the store, 2.5 wide and a certain length. To make a calculation of 1 m2, such a segment is not very convenient. To do this, you need to determine the area of \u200b\u200bthe product. Then divide it into squares. In other words, you need to perform difficult mathematical calculations.

It is much easier to carry out calculations on the basis of a linear one. To determine the cost of the goods, you will need to multiply the length of the carpet segment by the number of meters.

There is a fairly large list of goods in which the cost is calculated by the number of running meters. These include.

• Fabrics.
• Linoleum.
• Carpet.
• Finishing film.
• Rolled polyethylene.
• Electric wires.
• All kinds of pipes.
• Various fences.
• Fences.

Furniture calculation

Many consumers believe that the calculation in running meters refers only to roll materials. However, this opinion is not entirely true. When buying a product, we are often faced with a specific roll width. The cost of the furniture is often determined by the runners.

To make it clear, let's turn to the next example.

The furniture manufacturer has made a rough estimate. To completely fill a three-meter kitchen, taking into account all the furniture details, he will need 30,000 rubles. Therefore, the cost of 1 m of furniture will be 10,000 rubles. In other words, this cost will correspond to the price of one running meter. Based on such, fairly simple mathematical calculations, the furniture manufacturer can inform the customer what the cost of a set of furniture of the corresponding sample will be.

However, it is necessary to take into account one important nuance. When calculating the price r. m, only the cost of the cheapest fittings and material was taken into account. Sometimes the cost of fittings is not included in the calculation at all.

Therefore, if a very tempting offer is made to you, it is imperative to find out from what material the product is made, what fittings are installed on it. In this way, new customers are often attracted.

How many mm in running meter

As already mentioned, one running meter is equal to one standard meter. Hence it turns out that in 1 running meter 1000 mm.

Cheat sheet

So, to make it easier to understand the units of measurement, they can be summarized in one table, in which their ratio will be seen, and it will be quite easy to transfer one unit to another.

What does the term "square meter" mean?

This unit is intended for calculating the area of \u200b\u200ba square, each side of which will be 1 meter. To determine the size of the area, you need to multiply the height and length of the product. The short form is used for designation - sq. m.

Today this unit is found almost everywhere in our life. The most obvious example is the size of the living space. In other words, if we are talking about an apartment of 16 m2, then the floor area is equal to this value.

The square meter is most commonly found in the construction industry. To determine the area of \u200b\u200ba wall that is 6 m long and 4 m high, you just need to multiply six by four. It turns out that the wall area is 24 m2.