WBJEE · Physics · Rotational Motion
A circular disc rolls on a horizontal Iloor without slipping and the centre of the disc moves with a uniform velocity \(v\). Which of the following values of the velocily at a point on the rim of the disc can have?
- A \(v\)
- B \(-v\)
- C \(2 v\)
- D Zero
Answer & Solution
Correct Answer
(D) Zero
Step-by-step Solution
Detailed explanation
Consider the rolling motion of a circular disc as shown in the adjacent diagram. Velocity of point of contact \((P)\) is \(v_{P}=v-\omega R=v-v=0\) \[ [\because v=\omega R] \] velocity of point \({ }^{\prime} S^{\prime}, v_{S}=v+\omega R=2 V\) velocity of centre '…
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