Question

A particle of mass $m$ is observed from an inertial frame of reference and is found to move in a circle of radius $r$ with a uniform speed $v$. The centrifugal force on it is

• A. $\frac{m{v}^2}{r}$ towards the centre.
• B. $\frac{m{v}^2}{r}$ away from the centre.
• C. $\frac{m{v}^2}{r}$ along the tangent through the particle.
• D. $0$.

Answer 1

Answer: (D)

$0$.

Answer is zero.

In an inertial frame of reference, centrifugal force does not exist.