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Physics - Rotation Question with Solution | TestHub

PhysicsRotationMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

A uniform rod is held at an angle of $45^{o}$ to the horizontal and released from rest as shown. The minimum coefficient of friction between plane and rod required so that the rod does not slip on the plane upon release, will be

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Answer:

Solution:

$M g \frac{l}{2} \cos θ = \frac{M l^{2}}{3} α$

$M g - N_{y} = M \frac{α l}{2} \cos 45^{o}$

$μ N_{y} = M \frac{α l}{2} \sin 45^{o}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:RotationSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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