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Physics - Rotation Question with Solution | TestHub

PhysicsRotationRotational KinematicsMedium2 minPYQ_2026

PhysicsMediumsingle choice

A body is rotating about its own axis. Its rotational kinetic energy is ' $x$ ' and its angular momentum is ' $y$ '. Hence its moment of inertia about its own axis is

Options:

Answer:

Solution:

Rotational kinetic energy is given by $K = \frac{L ^{2}}{2 I}$

Substituting the given values, $K = x$ and $L = y$

$x = \frac{y ^{2}}{2 I}$

$I = \frac{y ^{2}}{2 x}$

Answer: $\frac{y ^{2}}{2 x}$

Stream:MHT_CETSubject:PhysicsTopic:RotationSubtopic:Rotational Kinematics

⏱ 2mℹ️ Source: PYQ_2026

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