Multiple Choice
A force of 10 pounds compresses a 21-inch spring 8 inches. How much work is done in compressing the spring from a length of 15 inches to a length of 13 inches?
A) 22.5 ft-lb
B) 19.5 ft-lb
C) 17.5 ft-lb
D) 12.5 ft-lb
E) 27.5 ft-lb
Correct Answer:
Verified
Correct Answer:
Verified
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