A uniform chain of mass m and length l is lying on a horizontal table with one-third of its length hanging over the edge of the

A uniform chain of mass m and length l is lying on a horizontal table with one-third of its length hanging over the edge of the table.

If a gentale pull is given to hanging end, it will start moving down. What is the change in gravitational potential energy of the chain, as it jist leaves the table?
A. `(4mgl)/(9)`
B. `-(4mgl)/(9)`
C. `(17mgl)/(18)`
D. `-(mgl)/(18)`

A uniform chain of mass m and length l is lying on a horizontal table with one-third of its length hanging over the edge of the table. If a gentale pu

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