Physics

Problem

A motor lifts a

40\,\text{kg}

load to a height of

20\,\text{m}

8\,\text{s}

. Take

g = 9.8\,\text{m/s}^2

. What is the power output of the motor? a)

1000\,\text{W}

7840\,\text{W}

980\,\text{W}

490\,\text{W}