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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

Two masses mA and mB moving with velocities vA and vB in opposite directions collide elastically. After the collision the masses mA and mB move with velocity vB and vA respectively. The ratio (mA/mB) is [AFMC 2002, RPMT 2003]

Answer: (A)

Solution

Two bodies exchange their velocities in an elastic collision only when their masses are equal; hence mA/mB = 1.

Question ID VK-154035