JEE PHYSICS MCQ: SYSTEM OF PARTICLES

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S-I: Moment of inertia of a particle changes, when the axis of rotation changes.
S-II: Moment of inertia depends on mass and distance of the particles.

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Correct option: A

Both S-I and S-II are correct

Option A (Both S-I and S-II are correct) is correct because the moment of inertia depends on both the axis of rotation and the mass distribution.

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It is easier for a swimmer jumping into water from a height to describe a loop in the air by A uniform thin rod

\mathrm{AB}

of length

\mathrm{L}

has linear mass density

\mu(x)=a+\frac{b x}{L}

, where

x

is measured from

\mathrm{A}

. If the

\mathrm{CM}

of the rod lies at a distance of

\left(\frac{7}{12}\right) \mathrm{L}

from

\mathrm{A}

, then a and

\mathrm{b}

1.0 \mathrm{~g}

is rotating in a circle of diameter

8 \mathrm{~cm}

. Its moment of inertia will be The angular velocity of a particle is given by

\omega = {t^4} + 2{t^3}

then its angular acceleration of the particle at

t = 1\,sec

\left( {rad\,{s^{ - 2}}} \right)