- #1

- 2

- 0

## Homework Statement

a disk rotates with constant angular accel. the initial angular speed of the disc is 2pie rad/s. After the disk rotates through 10pie rad, the ang speed is 7pie rad/s.

## Homework Equations

a. what is the mag of the angular accel?

## The Attempt at a Solution

alpha=delta omega/delta time

omega=delta theta/delta time

etiher or both?