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A uniform chain of length of length pir ...

A uniform chain of length of length `pir` lies inside a smooth semicircular tube (AB) of radius r. Assuming a slight disturbance to start the chain in motion, the velocity with which it will emerge from the end `(B)` of the tube will be

A

`sqrt(4gr((3)/(pi)+(pi)/(2)))`

B

`sqrt(3gr((2)/(n)+(pi)/(5)))`

C

`sqrt(2gr((2)/(pi)+(pi)/(2)))`

D

`sqrt(5gr((4)/(pi)+(pi)/(3)))`

Text Solution

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The correct Answer is:
C
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