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  4. A fly wheel is accelerated uniformly from rest and rotates through 5 rad in the first second. The angle rotated by the fly wheel in the next second, will be:

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Q. A fly wheel is accelerated uniformly from rest and rotates through $5 \,rad$ in the first second. The angle rotated by the fly wheel in the next second, will be:

JEE MainJEE Main 2022System of Particles and Rotational Motion

Solution:

$5=\frac{1}{2} \alpha(1)^{2}$
$\theta=\frac{1}{2} \alpha(2)^{2}$
$\theta-5=15$