A child pulls on a wagon with a force of $75 \mathrm {~N}$ If the wagon moves a total of $42 \mathrm {~m}$ in $3.1 \mathrm {~min}$ what is the average power delivered by the child?
A)17 W
B)21 W
C)22 W
D)26 W

Question

Quizplus · Accepted Answer

The average power delivered by the child is:$$P = \frac{F \cdot d}{t} = \frac{(75 \mathrm{~N})(42 \mathrm{~m})}{(3.1 \mathrm{~min})(60 \mathrm{~s/min})} = 21 \mathrm{~W}$$

A Child Pulls on a Wagon with a Force Of 75