Tangential acceleration:
In rotational motion, tangential acceleration is a measure of how quickly a tangential velocity changes. It always acts perpendicular to the centripetal acceleration of a rotating object. It is equal to the angular acceleration α, times the radius of the rotation.
tangential acceleration = (radius of the rotation)(angular acceleration)
atan = ra
Where r = radius of the object's rotation
a = angular acceleration, with uniits radians/s2
