3A.2 Pre Calculus - Arc Length, Linear Velocity, and Angular Velocity

theta must be in

radians

arc length = radius times theta

s = rxo

linear velocity

part of the arc that is traveled upon by an object (distance over time)

v = theta times r/time

v = wr

angular velocity

how fast the radian measure of an angle is changing as an object moves on its circular path

w = o/t

how to get rid of a unit

have unit conversion on the numerator and denominator

watch out for

pi

check your

units

make sure to do what at the end

simplify

multiply

across

divide

each time you can