Question

Find the work done by a force of 4 pounds acting in the direction of 41° to the horizontal in moving an object 5 feet from (0, 0) to (5, 0).

A. 13.1 ft-lb

B. 16.2 ft-lb

C. 15.1 ft-lb

D. 30.2 ft-lb

Answer 1

W = F*D
= 4 * cos(41°) * 5
= 15.1 ft-lbs

Answer 2

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