Physics

Physics

Problem

A 2 kg2\,\text{kg} cart moving at 6 m s−16\,\text{m\,s}^{-1} collides head-on elastically with a stationary 3 kg3\,\text{kg} cart on a frictionless track. The speed of the 2 kg2\,\text{kg} cart just after the collision is a) +4.8 m s−1+4.8\,\text{m\,s}^{-1} b) +2.4 m s−1+2.4\,\text{m\,s}^{-1} c) −1.2 m s−1-1.2\,\text{m\,s}^{-1} d) +1.2 m s−1+1.2\,\text{m\,s}^{-1}

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