Homework Help: Angular velocity

1. Oct 31, 2005

ViewtifulBeau

The angular position of a point on the rim of a rotating wheel is given by theta = 4* t - 3* t^2 + t^3, where theta is in radians if t is given in seconds.

find the angular velocities as t = 1 and t = 5.5

i plugged the numbers into the given equation to get 2 and 97.625
then i divided by the time to get 2 and 17.75 but both of these are wrong. what am i forgetting?

2. Oct 31, 2005

whozum

You are given a position equation, and you want to find the velocities at certain points in time.. do you know the relationship between position equations and velocity equations? Think calculus

3. Oct 31, 2005

ViewtifulBeau

ahh derivitive thanks