Question

Two particles of mass m₁ and m₂ (m₁ > m₂ ) attract each other with a force inversely proportional to the square of the distance between them. If the particles are initially held at rest and then released, the centre of mass will 

(a) move towards m₁ 

(b) move towards m₂ 

(c) remain at rest

(d) Nothing can be said

Answer 1

Correct option: (c) remain at rest

Explanation:

The centre of mass remains at rest because force of attraction is mutual. No external force is acting.