Test Academy | A body of mass m moving with velocity v makes a head-on collision with another body of mass 2m which is initially at rest. The loss of kinetic energy of the colliding body (mass m) is 1/2 of its initial kinetic energy, 1/9 of its initial kinetic energy, 8/9 of its initial kinetic energy, 1/4 of its initial kinetic energy

Question

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

Options :

1/2 of its initial kinetic energy
1/9 of its initial kinetic energy
8/9 of its initial kinetic energy
1/4 of its initial kinetic energy

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