Answer:
[tex]7,500\:\text{Watts}[/tex]
Explanation:
Power is given by [tex]P=\frac{W}{\Delta t}[/tex], where [tex]W[/tex] is work and [tex]\Delta t[/tex] is elapsed time. To calculated work, we'll use [tex]W=F\Delta x[/tex], where [tex]F[/tex] is force and [tex]\Delta x[/tex] is displacement. Substituting given values, we have:
[tex]W=10\cdot 50\cdot 60=30,000\:\text{J}[/tex].
Now plugging this in to our power equation, we get:
[tex]P=\frac{30,000}{4}=\boxed{7,500\:\text{W}}[/tex]
