Question

A wagon is pulled horizontally by exerting a force of 42 pounds on the handle at an angle of 25° with the horizontal. How much work is done in moving the wagon 85 feet?

Answer 1

The work done is 4386.6 J.

Explanation:

The work is given by:

`W = Fd`

Where:

F: is the applied force = 42 pounds

d: is the displacement = 85 feet

Since the force is applied at an angle (θ) of 25° with the horizontal we have:

`W = Fcos(\theta)d`

`W = 42 lb*(4.448 N)/(1 lb)cos(25)*85 ft*(0.3048 m)/(1 ft) = 4386.6 J`

Therefore, the work done is 4386.6 J.

I hope it helps you!