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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A metal ball of mass 2 kg moving with a speed of 10 had a head-on collision with a stationary ball of mass 3 kg. If after collision, both the balls move together, then the loss in kinetic energy due to collision is [MHTCET 2022]

Answer: (B)

Solution

Common speed ; initial KE J, final KE \tfrac$12(5)(16)

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Question ID VK-062477