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A uniform chain of length L and mass M i...

A uniform chain of length `L` and mass `M` is tying on a smoth table and one third of its length is banging vertically down table the edge of the table if g is acceleration the to gravity , the work required to pull the hanging part on the table is

A

`MgL`

B

`MgL//3`

C

`MgL//9`

D

`MgL//18`

Text Solution

Verified by Experts

The correct Answer is:
D
A uniform …………..

`W= (MgL)/(2n^(2))=(MgL)/(2(3)^(2)) = (MgL)/(18) (n = 3 given)`
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