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Naina Razdan Grade: 12
        A uniform chain of mass m and length l overhangs a table with its two thirds part on the table. Find the work done by a person to put the hanging part back on the table.
7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear Eshita


 


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mass of the hanging portion =(m/l) *l/3


                                         =m/3




center of mass of the hanging portion from the top of the tabel  = l/6




work done = increse in potential energy =(m/3) *g * (l/6)


                                                         =mgl/18





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Badiuddin

7 years ago
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