Multiple Choice
Solve the problem.
-A force of 1100 lb compresses a spring from its natural length of 20 in. to a length of 12 in. How much work is done in compressing it from 12 in. to 9 in.?
A) 620 in.-lb
B) 7800 in.-lb
C) 0.21 in.-lb
D) 3900 in.-lb
Correct Answer:
Verified
Correct Answer:
Verified
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