JEE MAIN - Physics (2021 - 22th July Evening Shift - No. 5)
Consider a situation in which a ring, a solid cylinder and a solid sphere roll down on the same inclined plane without slipping. Assume that they start rolling from rest and having identical diameter.
The correct statement for this situation is
The correct statement for this situation is
All of them will have same velocity.
The ring has greatest and the cylinder has the least velocity of the centre of mass at the bottom of the inclined plane.
The sphere has the greatest and the ring has the least velocity of the centre of mass at the bottom of the inclined plane.
The cylinder has the greatest and the sphere has the least velocity of the centre of mass at the bottom of the inclined plane.
Explanation
$${{{K_T}} \over {{K_R}}} = {{M{R^2}} \over {{I_{CM}}}}$$
ICM is maximum for ring.
$$\Rightarrow$$ v is least for ring.
ICM is maximum for ring.
$$\Rightarrow$$ v is least for ring.
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