2007-01-26 06:38:11 · 4 answers · asked by Jill L 1 in Science & Mathematics ➔ Physics
Hopefully you know the radius or diameter of the wheel. Then if you know how fast the wheel is going in terms of distance you can determine the rpm. Like if the wheel was traveling a x meters/min. and you know the circumference of the wheel to be y. The rpm can be calculated with x/y.
An example would be if the wheel was traveling at 40 meters/min. and the circumference of the wheel was 2 meters. You would know that the wheel was turning 20 full turns per minute or 20 rpm.
2007-01-26 06:45:53 · answer #1 · answered by uahgrad05 3 · 0⤊ 0⤋
Remember that the linear velocity is equal to the angular velocity (in rpm's) times the radius. so given the linear velocity and the radius you can calculate the angular velocity.
2007-01-26 14:56:42 · answer #2 · answered by 1ofSelby's 6 · 0⤊ 0⤋
What information are you given?
If you are told the size of the wheel, and its speed, then you could solve for it.
Angular velocity = (360 degrees) x (speed) / (circumference)
2007-01-26 14:47:36 · answer #3 · answered by morningfoxnorth 6 · 0⤊ 0⤋
Depends on what you ARE given. If, for example, you are given moment of inertia and stored rotational energy, you could figure it out from that.
2007-01-26 14:47:12 · answer #4 · answered by Anonymous · 0⤊ 0⤋