Question

A particle of mass m is released from point A on smooth fixed circular track as shown. If the particle is released from rest at t = 0, then variation of normal reaction N with $\left(\theta \right)$ angular displacement from initial position is

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

$N=mgsin\theta +\frac{m{v}^2}{r}and{v}^2=2grsin\theta$