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A chain of mass m and length L is held a...

A chain of mass m and length L is held at rest on smooth horizontal surface such that a part I of the chain is hanging vertically from the table. If the chain is let go, what is its speed as its end just leaves the horizontal surface?

A

A. `sqrt(g(L/2-I^2/(2L))`

B

B. `sqrt(2g(L-I^2/L)`

C

C. `sqrt(g(L-I^2/L)`

D

D. `sqrt((gI^2)/L)`

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