Angular Velocity and Angular Acceleration

• The angular velocity w(t) is the rate of angular displacement, , unit rad/s.

• The angular acceleration a(t) is the rate of angular velocity change, , unit rad/s2.

• In a uniform circular motion, w=const. a=0, period T=2p/w, tangential speed v=wr, centripetal acceleration a=w2r=v2/r.

• If a = const,

Previous slide

Next slide

Back to first slide

View graphic version