InterviewSolution
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InterviewSolution
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Two bodies of masses `m_(1)and m_(2)` are connected by a non-deformed light speing and lie on a horizontal plane. Coefficient of friction between the surface and the blocks is `mu.` Find an expression for the work done by the various foeces. Force F is applied horzontally to body of mass `m_(1)` in order to shift body of mass `m_(2).` |
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Answer» Let the motion of `m_(2)` start when the spring is strefched by x slowlt. Work done by various forces will involve 3 terms, F.x `(-um_(1)g)x and -1/2kx^(2)` Let the motion of `m_(2)` start when one spring is solwe stretched by x slowly Work done by various forces `=F.x-(mum_(1)g)x-1/2kx^(2)` =Change in KE=0 Where k is force constant of the spring |
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