How can we measure the gravitational strength of a body?

Answer 1

The gravitational strength of a body depends on your distance from it, as given by the following formula:

F = GMm/r^2

where F is the gravitational force strength, and G is the gravitational constant, M is the mass of the body and m is the test mass, where m << M, and r is the distance between the two masses.

G is = 6.67 × 10−11 N m^2 kg^−2 (newtons meters squared per kilogram squared)

Answer 2

The scientific term is the 'strength of the gravitational field created by a body' rather than the 'gravitational strength of a body'. Its value at a distance r from the centre of mass of the body is given by the formula f = GM / r^2, where, M is the mass of the body and G the gravitational constant. The force exerted by this field on another body of mass m is F = m.f. If m is much smaller than M, it moves towards M with an acceleration f. So if you measure this acceleration, you have f.

Answer 3

gravitational strength of a body like earth can be measured by the rate of its free fall.
As you may know, the gravitational force due to earth is given by:
F= G Mm/r^2

The gravitational strength (intensity ) is the force per unit mass,
So,
g = F/m= GM/r^2

which is known as the acceleration due to gravity!

practically u may measure it with devising an experiment, viz: pendulum, freely falling body etc.

Answer 4

By measuring it's mass and using the gravitational constant.


Doug

Answer 5

with a newtonmetre