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1
IIT-JEE 1985
MCQ (More than One Correct Answer)
+2
-0.5
A uniform chain of length L and mass M is lying on a smooth table and one third of its length is hanging vertically down over the edge of the table. If g is acceleration due to gravity, the work required to pull the hanging part on to the table is
A
MgL
B
$${{MgL} \over 3}$$
C
$${{MgL} \over 9}$$
D
$${{MgL} \over {18}}$$

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