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Physics - W.E.P. Question with Solution | TestHub

PhysicsW.E.P.Vertical circular motionEasy2 minPYQ_2020

PhysicsEasysingle choice

A bob hangs from a rigid support by an inextensible string of length $l$ . It is released from rest when string makes an angle $60^{o}$ with vertical. The speed of the bob at the lowest position is

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Answer:

Solution:

This mean $h = l (1 - \cos 60^{o})$
$\Rightarrow h = l \times \frac{1}{2}$
Velocity of bob $v = \sqrt{2 g h}$
$\Rightarrow v = \sqrt{2 g \frac{l}{2}}$
$\Rightarrow v = \sqrt{g l}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:W.E.P.Subtopic:Vertical circular motion

⏱ 2mℹ️ Source: PYQ_2020

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