A child uses 168 J of work pulling a wagon 25 m up a hill. What is the force exerted on the wagon by the child? (Record your answer to the correct number of significant digits)

To find the force exerted on the wagon by the child, we can use the formula:

Work = Force × Distance

Given:
Work = 168 J
Distance = 25 m

We can rearrange the formula to solve for force:

Force = Work / Distance

Plugging in the values:

Force = 168 J / 25 m

Calculating the division:

Force = 6.72 N

Therefore, the force exerted on the wagon by the child is 6.72 N.