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Rotational Motion question

2023 · 11 Apr · Shift 2 · Q62

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JEE Main
Physics
Rotational Motion
2023 · 11 Apr · Shift 2 · Q62

Rotational Motion question

2023 · 11 Apr · Shift 2 · Q62

JEE MainPhysicsRotational MotionNumerical+4 / −1

A circular plate is rotating in horizontal plane, about an axis passing through its center and perpendicular to the plate, with an angular velocity

\omega

. A person sits at the center having two dumbbells in his hands. When he stretches out his hands, the moment of inertia of the system becomes triple. If E be the initial Kinetic energy of the system, then final Kinetic energy will be

\frac{E}{x}

. The value of

x

is

Numerical answer

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