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Passage - I : A massless inextensible ...

Passage - I :
A massless inextensible string is wound arounf two indeentical discs A and B. Disc A is fixed at the centre but is free to rotate about its axis and B is free to fall down. If the string does not slip on either of the disc answer the following (Given mass of each disc is m and radius of each disc is R)

The acceleration of disc B is

A

`g/3`

B

`(2g)/(3)`

C

`(2g)/(5)`

D

`(4g)/(5)`

Text Solution

Verified by Experts

The correct Answer is:
D
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