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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

Two different masses 1 kg and 2 kg are moving with velocities 2 m/sec and 8 m/sec towards each other due to gravitational influence. Their centre of mass has a velocity of:

Answer: (B)

Solution

Only the mutual gravitational (internal) force acts, so the net external force is zero and the centre of mass, initially at rest, stays

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Question ID VK-040363