Question

Two bodies of masses 5kg and 15kg are separated by a distance of 5meter. Calculate the gravitational force between them?

Answer 1

Given:-

→Mass of the 1st body = 5kg

→Mass of the 2nd body = 15kg

→Distance of separation between

the bodies = 5m

To find:-

→Gravitational force between the bodies

Solution:-

•Value of G (Universal Gravitational Constant) = 6.67×10⁻¹¹ Nm²/kg²

By using Newton's Universal Law of Gravitation, we get:-

=>F = GMm/r²

Where:-

•F is the Gravitational force of attraction

•G is Universal Gravitational Constant

•M is mass of the 1st body

•m is mass of the 2nd body

•r² is the square of distance

=>F = 6.67×10⁻¹¹×5×15/(5)²

=>F = 6.67×10⁻¹¹×75/25

=>F = 6.67×10⁻¹¹×3

=>F = 20×10⁻¹¹

=>F = 2×10⁻¹⁰ N

Thus, gravitational force of attraction between the bodies is 2×10⁻¹⁰N.