1 Work Energy and Power
When a spring is stretched by a distance x, it exerts a force given by F = (−5x−16x3) N, where x is in m. The work done, when the spring is stretched from 0.1 m to 0.2 m is :
1) 6.9×10−2 J 2) 12.2×10−2 J. 3) 8.7×10−2 J 4) 12.2×10−1 J
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