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In Fig. a pulley is shown which is frict...

In Fig. a pulley is shown which is frictionless and a ring of mass `m` can slide on the string without any friction. One end of the string is attached to point `B` and to the other end, a block `'P'` of mass `m` is attached. The whole system lies in vertical plane.
If the system is released from rest, it is found that the system remains at rest. What is the value of `theta`

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`75^(@)`

Text Solution

Verified by Experts

The correct Answer is:
A

`2Tsintheta=mg,T=mg`
`sintheta=1/2impliestheta=30^(@)`
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