Question

Derive the formula for the gravitational force FBetween two bodies of masses M and m kept at a distance R from each other

Answer 1

Answer:

Explanation:

according to Newtons law of gravitation, gravitational force between two bodies is:

directly proportional to the product of its mases

F ∝ M×m --------eqn(1)

and inversly proportional to the distance between their distance squared.

F ∝ 1/r² ---------eqn(2)

From equation (1) and (2)

F ∝ Mm/r²

F = G Mm/r² , where G is the proportionality consatant called universal gravitational constant and its value is 6.67 ×10^-1 Nm^2/kg^2