1. Rotational Motion
Angular Speed – the measure of how much time it takes an object to change angular displacement from one point to another point around an axis
-rate of change in angular displacement
Angular Speedaverage = D angular displacement
Dtime
w = Dq = Ds/r units:
Dt Dt
360 = 2prad = 1 revolution

2. Rotational Motion
Angular Acceleration - rate of change in angular speed
-how fast angular speed is changing
Angular Acceleration = change in angular velocity
change in time
aaverage = Dw =
D t