Answer:
7500 W
Explanation:
First of all, we need to find the work done by lifting the steel. This is given by
[tex]W=Fd[/tex]
where:
F = 22,000 N is the force applied
d = 15 m is the displacement of the steel
Solving the equation,
[tex]W=(22,000 N)(15 m)=3.3\cdot 10^5 J[/tex]
Now we can find the power of the crane, which is given by
[tex]P=\frac{W}{t}[/tex]
where
W is the work done
t = 44 s is the time elapsed
Substituting into the formula,
[tex]P=\frac{3.3\cdot 10^5 J}{44 s}=7500 W[/tex]
