A particle describes uniform circular motion of radius with angular speed

PHYSICS · Single correct · CBSE · Physics · Oscillations · Oscillations

Problem

A particle describes uniform circular motion of radius

A

with angular speed

\omega=2\,\text{rad s}^{-1}

. Its projection on a fixed diameter starts from the centre of the circle at

t=0

. The time taken by the projection to reach its extreme positive position is (a)

1.57\,\text{s}

(b)

3.14\,\text{s}

(c)

0.79\,\text{s}

(d)

0.39\,\text{s}