Physics

Problem

1500\,\text{kg}

car accelerates uniformly from rest to

20\,\text{m}\!/\!\text{s}

8.0\,\text{s}

on a level road. A constant

4.0\,\text{kN}

resistive force opposes the motion. Determine the car engine’s average power output during the

8.0\,\text{s}

interval.