Physics

Problem

An electric elevator lifts a cabin of mass

200\,\text{kg}

carrying five passengers of mass

60\,\text{kg}

each to a height of

30\,\text{m}

25\,\text{s}

. Take

g = 10\,\text{m\,s}^{-2}

. Calculate the average power supplied by the motor. a)

12\,\text{kW}

3\,\text{kW}

6\,\text{kW}

5\,\text{kW}