Q 11-06-008NEETNEET 2024Top questionEasy
A wheel of a bullock cart is rolling on a level road as shown in the figure below. If its linear speed is $v$ in the direction shown, which one of the following options is correct ($P$ and $Q$ are any highest and lowest points on the wheel, respectively)?
Answer: (D) Point $P$ moves faster than point $Q$.
In rolling without slipping, the velocity of any point is the velocity of the centre plus the velocity due to rotation, with $\omega R = v$.
Top point $P$: $v + \omega R = 2v$.
Bottom point $Q$ (in contact with the road): $v - \omega R = 0$.
So $P$ moves faster than $Q$.
Solution by Sreeraj P, M.Sc Physics