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Physics - Rotation Question with Solution | TestHub

PhysicsRotationTorque / angular accelerationMedium2 minPYQ_2020

PhysicsMediumsingle choice

A uniform cylinder of mass $M$ and radius $R$ is to be pulled over a step of height a $(a < R)$ by applying a force $F$ at its centre $' O'$ perpendicular to the plane through the axes of the cylinder on the edge of the step (see figure). The minimum value of $F$ required is :

Question diagram: A uniform cylinder of mass M and radius R is to be pulled ov

Options:

Answer:

Solution:

$Mg \sqrt{1 - {(\frac{R - a}{R})}^{2}}$

$F R > M g c o s θ R$

$F > M gcos θ$

$F > M g \frac{\sqrt{R^{2} - (R - a)^{2}}}{R}$ .

$\Rightarrow Mg \sqrt{1 - {(\frac{R - a}{R})}^{2}}$

Stream:JEESubject:PhysicsTopic:RotationSubtopic:Torque / angular acceleration

⏱ 2mℹ️ Source: PYQ_2020

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