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In fig, all the pulleys and strings are ...

In fig, all the pulleys and strings are massless and all the surfaces are frictionless. A small block of mass m is placed on fixed wedge (take `f=10ms^(-2)`).

The acceleration of pulley `p_(4)` is

A

`2.25 ms^(-2)` towards left

B

`2.25 ms^(-2)` towards right

C

`9 ms^(-2)` towards left

D

`9 ms^(-2)` towards right

Text Solution

Verified by Experts

The correct Answer is:
A

`mg sin 30 -T=ma`
`50-5=10a`
`a=4.5 ms^(-2)`
`a_(P_4)=(-+4.5)/(2)=2.25 ms^(-1)`.
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CENGAGE PHYSICS-NEWTON'S LAWS OF MOTION 1-Linked Comperhension
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