Block of mass slides on a smooth horizontal track with speed and collides with block…

PHYSICS · Subjective · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

Block AA of mass 2 kg2\,\text{kg} slides on a smooth horizontal track with speed 5 m s−15\,\text{m\,s}^{-1} and collides with block BB of mass 3 kg3\,\text{kg} that is initially at rest. The two blocks stick together after impact. Calculate the percentage of the initial kinetic energy that is lost in the collision.

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