1.

A body of mass m moving with velocity v makes a head-on collision with another body of mass 2 m which is initially at rest. The loss of kinetic energy of the colliding body (mass m) is                       [MP PMT 1996]

A.          \[\frac{1}{2}\] of its initial kinetic energy
B.          \[\frac{1}{9}\] of its initial kinetic energy
C.          \[\frac{8}{9}\] of its initial kinetic energy
D.          \[\frac{1}{4}\]of its initial kinetic energy
Answer» D.          \[\frac{1}{4}\]of its initial kinetic energy


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