Question

A wheel of bicycle is rolling without slipping on a level road. If the velocity of the center of mass is $v_{cm}$, then true statement is

• A. the velocity of point $A$ is $2v_{cm}$ and velocity of point $B$ is zero
• B. the velocity of point $A$ is zero and velocity of point B is $2v_{cm}$
• C. the velocity of point $A$ is $2v_{cm}$ and velocity of point $B$ is $-v_{cm}$
• D. the velocities of both $A$ and $B$ are $v_{cm}$

Answer 1

The correct option is A the velocity of point $A$ is $2v_{cm}$ and velocity of point $B$ is zero


$V_{cm}=r\omega$
$V_B=0V_A=2V_{cm}$