Physics

Problem

A car of mass

800\,\text{kg}

accelerates uniformly from rest to a speed of

20\,\text{m\,s}^{-1}

10\,\text{s}

. Assuming all the engine’s work appears as kinetic energy, find the average power developed by the engine. a)

32\,\text{kW}

16\,\text{kW}

8\,\text{kW}

160\,\text{kW}