JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

A spacecraft of mass M, moving with velocity v, suddenly breaks into two pieces of the same mass m. After the explosion, one of the mass m becomes stationary. What is the velocity of the other part of the craft? [DCE 2003]

Answer: (C)

Solution

Momentum conservation: Mv = m(0) + mV' ⟹ V' = Mv/m.

Question ID VK-153677