A uniform cable of mass 'M' and length ‘L’ is placed on a horizontal surface such that its \({\left( {\frac{1}{n}} \right)^{th}}\) part is hanging below the edge of the surface. To lift the hanging part of the cable upto the surface, the work done should be:

A uniform cable of mass 'M' and length ‘L’ is placed on a horizont

1.	A uniform cable of mass 'M' and length ‘L’ is placed on a horizontal surface such that its \({\left( {\frac{1}{n}} \right)^{th}}\) part is hanging below the edge of the surface. To lift the hanging part of the cable upto the surface, the work done should be:
A.	\(\frac{{MgL}}{{2{n^2}}}\)
B.	\(\frac{{MgL}}{{{n^2}}}\)
C.	\(\frac{{2MgL}}{{{n^2}}}\)
D.	\(nMgL\)
Answer» B. \(\frac{{MgL}}{{{n^2}}}\)

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A uniform cable of mass 'M' and length ‘L’ is placed on a horizontal surface such that its \({\left( {\frac{1}{n}} \right)^{th}}\) part is hanging below the edge of the surface. To lift the hanging part of the cable upto the surface, the work done should be:

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