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
1 answer:
F = 5 p
d = 5 ft
The work formula:
W = F * d
W = 5 p * cos 41° * 5 ft = 4 * 0.75471 * 5 = 15.09 ft-lb ≈ 15.1 ft-lb
Answer: C ) 15.1 ft-lb
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