- #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