- #1
ryty
- 30
- 0
Homework Statement
When play is pressed, a cd accelerates uniformly from rest to 500 rev/min in 3.0 revolutions. If the Cd has a radius of 5.5 cm, and a mass of 20 g, what is the torque?
Homework Equations
not sure, this is my problem. i think its torque=angular acceleration*inertia. but i don't know how to turn "500 rpm in 3.0 revolutions" into angular acceleeration
The Attempt at a Solution
nothing, i don't how to make the equations work