Question

A 63 kg object needs to be lifted 7 meters in a matter of 5 seconds. Approximately how much horsepower is required to achieve this task?

A. 1.16 hp
B. 864.36 hp
C. 441 hp
D. 0.59 hp

Answer 1

1.16 hp

Explanation:

Answer 2

1.16 horse power. Option A.

Explanation:

Work done = m g h = 63 * 9.81 * 7 = 4326.21 joules

Power = 4326.21 / 5 = 865.24 Watts

1 Horse power = 746 watts so the answer is 865.24 / 746 = 1.16 HP to nearest hundredth.