A force of 4 pounds compresses a 15-inch spring a total of 4 inches. How much work is done in compressing the spring 8 inches? Use Hooke's Law to determine the variable force. Work done:? ft-lb

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A force of 4 pounds compresses a 15-inch spring
a total of 4 inches. How much work is done in
compressing the spring 8 inches? Use Hooke's
Law to determine the variable force. Work done:?
ft-lb
Transcribed Image Text:A force of 4 pounds compresses a 15-inch spring a total of 4 inches. How much work is done in compressing the spring 8 inches? Use Hooke's Law to determine the variable force. Work done:? ft-lb
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