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PhysicsNEET 2024Rolling motion and rotational kinetic energy

System of Particles and Rotational Motion

A wheel of a bullock cart is rolling on a level road as shown in the figure below. If its linear speed is vv in the direction shown, which one of the following options is correct (PP and QQ are any highest and lowest points on the wheel, respectively)?

Question 1 as printed in the NEET 2024 booklet

  1. A.Point P moves faster than point Q✓
  2. B.Both the points P and Q move with equal speed
  3. C.Point P has zero speed
  4. D.Point P moves slower than point Q

Solution

For a wheel rolling without slipping, the point of contact Q is momentarily at rest and the topmost point P moves at 2v2v. So P moves faster than Q.

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