Question

A child pulls a wagon 4 m using a force of 83 N at an angle 11.9° above horizontal. The force of friction on the wagon is 17 N. Calculate the net work done on the wagon?

Answer 1

The net work done on the wagon can be calculated by subtracting the work done by friction from the work done by the child pulling the wagon.

Step-by-step explanation:

The net work done on the wagon can be calculated by subtracting the work done by friction from the work done by the child pulling the wagon. The work done by the child pulling the wagon can be calculated using the formula:

Work = force * distance * cos(angle)

Substituting the given values:

Work = 83 N * 4 m * cos(11.9°)

To calculate the work done by friction, use the formula:

Work = force of friction * distance

Substituting the given value:

Work = 17 N * 4 m

Finally, subtract the work done by friction from the work done by the child pulling the wagon to get the net work done.