Solution to problems – class 9 – Set 1 Q34

Problem Statement

Calculate the force of gravitation between two objects of masses 50 kg and 120 kg respectively kept at a distance of 10 m from one another. (Gravitational constant, G = 6.7 × 10 -11 Nm2 /kg^2)

Solution

M1 = 50 kg
M2 = 120 kg
Distance = r = 10 m


Force of gravitation
= (G M1 M2) / r2
F= (6.7 x 10 -11 ) (50 x 120) / 10 2
So, F = 4.02 x 10-9 N

Question Set – Physics Problems for grade 9

Solution to problems – class 9 – Set 1 Q34
Law of Gravitation
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