Circular motion - Kinematics

Kinematics of uniform circular motion          x(t)       v(t)       a(t)       phi(t)     w(t)

radian 

Angle     degree             grad      arc minute       arc second       Counter clockwise (positive)    Clock-wise(negative)             

Position vector           Angular displacement 

Angular speed     w=2*pi/T          Linear speed    v = w * R          Linear velocity

Centripetal acceleration      a = w^2 * R         Direction