Physics - Rotation Question with Solution | TestHub

PhysicsRotationTranslational + RotationalMedium2 minPYQ_2021

PhysicsMediumnumerical

A solid disc of radius $a$ and mass $m$ rolls down without slipping on an inclined plane making an angle $θ$ with the horizontal. The acceleration of the disc will be $\frac{2}{b} g \sin θ$ , where $b$ is _______. (Round off to the Nearest Integer)

( $g =$ acceleration due to gravity)

( $θ =$ angle as shown in figure)

Answer:

3.00

Solution:

$a = \frac{g \sin θ}{1 + \frac{I}{{mR}^{2}}} = \frac{g \sin θ}{1 + \frac{1}{2}} = \frac{2}{3} g \sin θ$

$b = 3$

Stream:JEESubject:PhysicsTopic:RotationSubtopic:Translational + Rotational

⏱ 2mℹ️ Source: PYQ_2021

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