Angular Velocity
The angular velocity of a point on a
rotating object is the number of degrees,
radians, or revolutions per unit time
through which the point turns.
Rpm rad/sec 1 rev/min 120deg/min
Linear Velocity
The linear velocity of a point on a rotating
object is the distance per unit time that
the point travels along its circular path.
In/sec ft/min m/sec mph
VELOCITY COMMANDMENTS
1. If 2 rotating objects are
connected by their rims, as in
sprockets and chains in a bicycle,
then the rims of the sprockets and
the chain have the same linear
velocity.
VELOCITY COMMANDMENTS
2. All points on the same rotating object
have the same angular velocity.
3. If two rotating objects are connected
so that they rotate as a single object
such as a wheel and an axle, then
they have the same angular velocity.