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JEE Main Physics question

PhysicsWork, Energy and PowerJEE Main

Statement 1: If a light body and a heavy body have equal kinetic energies, momentum is greater for the heavy body. Statement 2: If a light body and a heavy body have the same momentum, the light body will possess more kinetic energy.

Answer: (A)

Solution

Since K = p²/2m, for the same K, p ∝ √m (heavier body has more momentum) — Statement 1 true; for the same p, K ∝ 1/m (lighter

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Question ID VK-153691