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One end of a fixed spring is pulled by a...

One end of a fixed spring is pulled by an average force of `10N` through a distance of `5cm`, find the work done by the spring.

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`W=-k/2(x_2^2-x_1^2)=-k/2(x_2+x_1)(x_2-x_1)`
`=-((kx_2+kx_1)/(2))(x)=-((F_1+F_2)/(2))x=-F_(av)x`
`=-10xx5/100=0.5N`
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CENGAGE PHYSICS ENGLISH-WORK, POWER & ENERGY-Exercise 8.1
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  14. A force F is exerted on a body of mass M, which is connected to a spri...

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  15. A body is thrown on a rough surface such that the friction force actin...

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