Question

Due to slipping, points $A$ and $B$ on the rim of the disc have the velocities shown:
Angular velocity of disc will be:

• A. 11.25$rad/sec$
• B. 23$rad/sec$
• C. 15$rad/sec$
• D. None

Answer 1

The correct option is A 11.25$rad/sec$

Angular velocity with respect to $\frac{v_1}{r}=\frac{4.5}{0.4}$

Angular velocity $\omega =11.25rad/s$