Answer:
Explanation:
load = 4500lb lift height= 30 ft
time =15 s
velocity=[tex]\frac{30}{15}[/tex] ft/s
velocity=2 ft/s
power = force[tex]\times[/tex] velocity
power=[tex]{4500}\times2[/tex]
power= 9000 lb ft/s
1 hp= 550 lb ft/s
power= [tex]\frac{9000}{550} =16.36[/tex] hp