Question

A circular disc rolls on a horizontal floor without slipping and the centre of the disc moves with a uniform velocity $v$. Which of the following values of the velocity at a point on the rim of the disc can have

• A. $v$
• B. $-v$
• C. $2v$
• D. $zero$

Answer 1

Answer: (A), (C), (D)

The correct options are
A $v$
C $2v$
D $zero$

Given the velocity of the center of mass of a circular disc rolls on a horizontal floor without slipping is $v$.So velocity at a point on the rim of the disc will be the vector sum of the velocity of the center of mass and velocity due to circular motion. i.e can have from 0 to $2v$.

Therefore, A, C, and D are correct options.