Q. A body is whirled in a horizontal circle of radius $20\ cm.$ It has angular velocity of $10\ rad/s$. What is its linear velocity at any point on circular path
A) $10\ m/s$
B) $2\ m/s$
C) $20\ m/s$
D) $\sqrt{2\ }m/s$
Explanation
(b) $v = r\omega = 20 \times 10cm/s$=$2m/s$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.