Question

If a hoist lifts a 4500lb load 30ft in 15s, the power delivered to the load is a) 18.00hp b) 9000hp c) 16.36hp d) None of the above

Answer 1

Step-by-step explanation:

load = 4500lb lift height= 30 ft

time =15 s

velocity=
`(30)/(15)` ft/s

velocity=2 ft/s

power = force
`*` velocity

power=
`{4500}*2`

power= 9000 lb ft/s

1 hp= 550 lb ft/s

power=
`(9000)/(550) =16.36` hp