What is the meaning of m3 kg-1 s-2 in gravitational constant

Thread starter manvirsingh
Start date Dec 19, 2011
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Constant Gravitational Gravitational constant

In summary, the units m3 kg-1 s-2 in the gravitational constant represent the force of gravitational attraction between two objects with masses of 1 kilogram each, separated by a distance of 1 meter. This is also known as the Newtonian constant of gravitation. The value of m3 kg-1 s-2 in the gravitational constant is used to calculate the force of gravitational attraction between two objects. The greater the value, the stronger the force of gravity between the objects will be. The units m3 kg-1 s-2 were chosen for the gravitational constant to ensure that the equation for calculating gravitational force, F = Gm1m2/r2, would result in the correct unit of force, which is

Dec 19, 2011

manvirsingh

what is the meaning of m3 kg-1 s-2 in gravitational constant

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Dec 19, 2011

JHamm

Force has units [itex]kg\ m\ s^{-2} [/itex], the units in the gravitational constant just make this come out.

Dec 19, 2011

gneill

Mentor

Note that you can also write the units of G as [itex]N\;m^2\;kg^-2[/itex]. This makes its role in Newton's law of gravitation even more obvious.

FAQ: What is the meaning of m3 kg-1 s-2 in gravitational constant

What does m3 kg-1 s-2 represent in the gravitational constant?

The units m3 kg-1 s-2 in the gravitational constant represent the force of gravitational attraction between two objects with masses of 1 kilogram each, separated by a distance of 1 meter. This is also known as the Newtonian constant of gravitation.

How is m3 kg-1 s-2 related to the force of gravity?

The value of m3 kg-1 s-2 in the gravitational constant is used to calculate the force of gravitational attraction between two objects. The greater the value, the stronger the force of gravity between the objects will be.

Why are the units m3 kg-1 s-2 used in the gravitational constant?

The units m3 kg-1 s-2 were chosen for the gravitational constant to ensure that the equation for calculating gravitational force, F = Gm1m2/r2, would result in the correct unit of force, which is Newtons (N). This is because the unit for force is kg m s-2, so the units of m3 kg-1 s-2 in the gravitational constant cancel out with the units in the equation.

Is m3 kg-1 s-2 a universal constant?

Yes, m3 kg-1 s-2 is considered to be a universal constant, meaning it has the same value throughout the universe. This means that the strength of gravity between two objects will be the same regardless of where they are in the universe.

How was the value of m3 kg-1 s-2 determined in the gravitational constant?

The value of m3 kg-1 s-2 in the gravitational constant, also known as the universal gravitational constant (G), was first determined by Sir Isaac Newton through his law of universal gravitation. It has since been refined and measured more accurately through various experiments and observations.