Answer:
7500 W
Step-by-step explanation:
First of all, we need to find the work done by lifting the steel. This is given by

where:
F = 22,000 N is the force applied
d = 15 m is the displacement of the steel
Solving the equation,

Now we can find the power of the crane, which is given by

where
W is the work done
t = 44 s is the time elapsed
Substituting into the formula,
