Two electric hoists each raise a steel beam vertically a distance of

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

Two electric hoists each raise a

200\,\text{kg}

steel beam vertically a distance of

3.0\,\text{m}

. Hoist X completes the lift in

12\,\text{s}

, whereas hoist Y completes the lift in

8.0\,\text{s}

. By what factor is the average power output of hoist Y greater than that of hoist X? (a) 2.0 (b) 1.5 (c) 2.25 (d) 1.33