Class 11 NEET Physics Motion in a Plane Questions

Here, Radius, R=5cm=5×10−2m
Time period,T=0.2πs
Centripetal acceleration

As particle moves with constant speed, therefore its tangential acceleration is zero. So,at=0
The acceleration of the particle is
a=√ac2+at2=ac=5

m

s2

It acts towards the centre of the circle