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In the following figure the pulley P(1) ...

In the following figure the pulley `P_(1)` is fixed and the pulley `P_(2)` is movable. If `W_(1)=W_(2)=100` `N` , what is the angle `AP_(2)P_(1)` ? The pulleys are frictionless.

A

`30^(@)`

B

`60^(@)`

C

`90^(@)`

D

`120^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D
`2Wcostheta=W_(2)`
implies `2xx100costheta=100`
implies `costheta=(1)/(2)` implies `theta=60^(@)=2theta=120^(@)`
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