Multiple Choice
A spring in equilibrium is 10 inches long and an external force of 30 pounds stretches the spring to a length of 18 inches. The work done by the spring in stretching it from equilibrium to 12 inches, in inch-pounds, is
A) -6.5
B) -7.5
C) -8.5
D) -9
E) -9.5
Correct Answer:
Verified
Correct Answer:
Verified
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