Question

A pellet of mass 1 g is moving with an angular velocity of 1 rad/s along a circle of radius 1 m the centrifugal force is:

• A. 0.1 dyne
• B. 1 dyne
• C. 10 dyne
• D. 100 dyne

Answer 1

The correct option is D 100 dyne

Given that $m=1\times {10}^{-3}kg;\omega =1rad/s$ and $r=1m$
Hence, centrifugal force $=m{\omega }^{2}r={10}^{-3}N$
$1N={10}^{5}dyne$
$\therefore$ Centrifugal force = 100 dyne.