Multiple Choice
Solve the problem.
-The spring of a spring balance is 5.0 in. long when there is no weight on the balance, and it is 7.8 in. long with 4.0 lb hung from the balance. How much work is done in stretching it from 5.0 in. to a length of 13.3 in.?
A) 49 in.-lb
B) 24 in.-lb
C) 110 in.-lb
D) 5.9 in.-lb
Correct Answer:

Verified
Correct Answer:
Verified
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