Solve the problem Round your answer to the nearest tenth A p

Solve the problem. Round your answer to the nearest tenth. A person is pulling a freight cart with a force of 41 pounds. How much work is done in moving the cart 20 feet if the cart\'s handle makes an angle of 30degree with the ground? Select one: A. 41.0 ft. -lb. 410.0 ft-lb 743.2 ft.- lb. 710.1 ft-lb

Solution

Work done = Force in the direction of displacement*displacement

= Fcos(theta)*displacement

= 41cos30 *20

= 820cos30

= 820*sqrt3/2
= 410sqrt3

= 710.1 ft-lb