A car is traveling along a circular path of radius 300 m with a constant speed of 30 m / s . Find its angular velocity and the radial component of the acceleration . a ) 1 rad / s , 300
m / s^{2} 

The angular velocity in terms of constant tangential velocity( v _{t} ) and the radius of curvature ( r ) is given as, The the normal acceleration is given by,
Since there is no tangential acceleration the acceleration of the car is its normal accelertion. Hence the radial component of acceleration is  3 m/s^{2} 