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PhysicsNEET 2019Collisions: elastic and inelastic

Work, Energy and Power

Body A of mass 4m4m moving with speed uu collides with another body B of mass 2m2m, at rest. The collision is head-on and elastic in nature. After the collision, the fraction of energy lost by body A is:

  1. A.19\dfrac{1}{9}
  2. B.89\dfrac{8}{9}✓
  3. C.49\dfrac{4}{9}
  4. D.59\dfrac{5}{9}

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