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JEE Main202122 Jul 2021Morning ShiftPhysicsRotational MotionActual

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

Options

  1. AThe sphere has the greatest and the ring has the least velocity of the centre of mass at the bottom of the inc
  2. BThe ring has the greatest and the cylinder has the least velocity of the centre of mass at the bottom of the i
  3. CAll of them will have same velocity.
  4. DThe cylinder has the greatest and the sphere has the least velocity of the centre of mass at the bottom of the

Correct answer

A. The sphere has the greatest and the ring has the least velocity of the centre of mass at the bottom of the inc

Step-by-step solution

a = g s i n θ 1 + I m R 2 I ring   > I solidcylinder   > I solidsphere   ⇒ a ring   < a solidcylinder   < a solidsphere   ⇒ v ring   < v solidcylinder   < v solidsphere  

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