Rotational Motion — Hard Difficulty

Practice 84 questions on Rotational Motion — Hard Difficulty. Includes: **Assertion (A):** The moment of inertia of a body…; **Assertion (A):** A ring has a larger moment of…; A body is in pure rolling motion on a rough horizontal…. Free quiz on NoteTube.

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1.
A body starts rolling up an incline from the bottom with initial $v_{cm} = 5$ m/s. If it is a solid sphere, the height reached is ($g = 10$ m/$s^{2}$):
2.
A spherical shell (hollow sphere) of mass 2 kg and radius 0.3 m is rotating about its diameter at 10 rad/s. Its angular momentum is:
3.
For a solid cylinder (same as disc: $K^2/R^2 = 1/2$) rolling down a 30° incline, which statements are correct? ($g = 10$ m/$s^{2}$)
4.
A body is in pure rolling motion on a rough horizontal surface. The work done by the friction force is:
5.
In a rolling race on an incline, which statements are correct?

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