What is Linear Speed, Angular Speed and Arc Length?

Linear Speed is equal to radius times angular speed and is always measured as distance over time units (i.e. mi/hr, in/sec, ft/min, mi/sec, ect.) Equation: ls=r x as

Angular Speed is equal to linear speed divided by radius and is always measured as radians over a time unit (i.e. rad/min, rad/sec. rad/hr, etc.) Equation: as=ls/r

Arc length is the measure of a curved surface in a circle or object and can be measured in any time unit (i.e. cm, in, ft, m, etc.) Equation: s=r x Θ