Rotational motion

Question

A particle moving along a  circular  path has equal magnitude of linear and angular  accelaration. The diameter of the path is

A)1

B)2

C)pie

D)2 pie

Answer 1

Angular acceleration  (A)× radius(r)= linear acceleration (a)

Given A = a we get r=1

So diameter (d) =2

Option (B) is accepted