A uniform rope of length .L. and linear density `.mu.` is on a smooth horizontal table with a lentht .l. lying on the table. The work done in pulling the hanging part on to the table is

Options

A. `(mug(L-l)^(2))/(2)`
B. `(mug(L-l)^(2))/(2l^(2))`
C. `(mul(L-l)^(2))/(2L^(2))`
D. `(mugl)/(2(L-l))`

Answer

A