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27 December, 22:38

The force required to compress a non-standard spring as a function of displacement from equilibrium x is given by the equation f (x) = ax2 - bx, where a = 65 n/m2, b = 12 n/m, and the positive x direction is in the compression direction of the spring.

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  1. 28 December, 00:31
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    Answer: F (x) = ax^2 - bx or F (x) = ax² - bx F (x) = 30x² - 6x â"F (x) dx = â" (30x² - 6x) dx as this is evaluated from zero to x W = 10xÂł - 3x² <===ANS W = 10 (0.42Âł) - 3 (0.42²) - [10 (0Âł) - 3 (0²) ] W = 0.212 J <===ANS W = 10 (0.72Âł) - 3 (0.72²) - [10 (0.42Âł) - 3 (0.42²) ] W = 1.966 J <===ANS
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