A wagon is pulled along level ground by exerting a force of

A wagon is pulled along level ground by exerting a force of 38 pounds on a handle that makes an angle of 45 compositefunction with the horizontal. How much work is done pulling the wagon 70 feet? W almostequalto foot-pounds (Rounded to the nearest whole number as needed.)

Solution

Work done = F d cos (a)

a = 45

F= 38 pounds

d = 70 feet

W = 38*70 * cos 45

= 2660 * 1/root 2

= 1330 root 2

= 1880.62 foot-pounds