It takes 100J of work to stretch a spring 0.5m from its equilibrium position.How much work is needed to stretch it an additional 0.75m?
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work = 100 Joule
Displacement is 0.5 m
Therefore force equals to work by displacement
100 / 0.5
force is 200
therefore work done equals to force by displacement
200 / 0.75
266.66 Joule
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