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A fixed wedge ABC is in shape of equilat...

A fixed wedge ABC is in shape of equilateral triangle of side l. Initially , achain of length 2l and mass m rests on the wedge as shown. The chain is slowly being pulled down by the application of a force F as shown. Work done by gravity till the time, the chain leaves the wedge will be `:`

A

`- (((sqrt(3) +1) mgl)/(2))`

B

` (((sqrt(3) +1) mgl)/(2))`

C

` -(((sqrt(3) +2) mgl)/(4))`

D

` (((sqrt(3) +4) mgl)/(4))`

Text Solution

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The correct Answer is:
D
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