The force exerted by the ideal string on the ideal pulley P shown in the figure is

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Question: Answered & Verified by Expert

The force exerted by the ideal string on the ideal pulley

P shown in the figure

is

PhysicsLaws of MotionNEET

Options:

A $m g$
B $2 m g$
C $\sqrt 2 m g$
D $4 m g$

Solution:

2427 Upvotes Verified Answer

The correct answer is:

m g

As

T = m g

and for pulley

P

, we can write

T_{ne t} = \sqrt{T^{2} + T^{2} + 2 . T . T . c o s 120 °} = T = m g

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