InterviewSolution
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InterviewSolution
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A small bucket of mass M kg is attached to a lone inextensible cord of length L m. The bucket is released from rest when the cord is in a horizontal position. At its lowest position, the bucket scoops up m kg of water and swings up to a height h. The height h in meter is :-A. `((M)/(M + m))^(2) L`B. `((M)/(M + m)) L`C. `((M + m)/(M))^(2) L`D. `((M + m)/(M)) L` |
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Answer» Correct Answer - A At the lowest position COLM : `Msqrt(2gL) = (M + m)v` ……(i) COLM : `(1)/(2) (M + m)v^(2) = (M + m)gh` …..(ii) `rArr v = sqrt(2gh) = (Msqrt2gL)/((M + m)) rArr h = ((M)/(m + M))^(2) L` |
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