Q. A particle moves with constant angular velocity in circular path of certain radius and is acted upon by a certain centripetal force $F$. If the angular velocity is doubled keeping radius the same, the new force will be
A) $2F$
B) $F^{2}$
C) $4F$
D) $F/2$
Explanation
(c) $F = m\omega^{2}R\ \therefore F \propto \omega^{2}$ ($m$ and $R$ are constant)
If angular velocity is doubled force will becomes four times
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.