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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

If two balls each of mass 0.06 kg moving in opposite directions with speed 4 m/s collide and rebound with the same speed, then the impulse imparted to each ball due to the other is [AFMC 1998, AFMC 2001]

Answer: (A)

Solution

Impulse = change in momentum = − = m(v − (−v)) = 2mv = 2(0.06)(4) = 0.48 kg-m/s.

Question ID VK-154066