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Sir.I have a doubt in solution.Please clear my doubt.Why we apply conservation of energy in m2 ?Why we should not write it as F=umg+kx?

Sir.I have a doubt in solution.Please clear my doubt.Why we apply conservation of energy in m2 ?Why we should not write it as F=umg+kx?

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Grade:12th pass

1 Answers

Eshan
askIITians Faculty 2095 Points
5 years ago
Dear student,

We cannot write that equation because this would have been possible if the block was not accelerating at that point. However, at the moment whenm_1starts moving,m_2 would have some acceleration. Only choice we have is to use conservation of energy.

Regards.

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