# Uniform angular acceleration - degrees per second?

1. Oct 1, 2007

### BlueSkyy

1. The problem statement, all variables and given/known data

A wheel is subjected to uniform angular acceleration. Initially its angular velocity is zero. During the first 1-s time interval, it rotates through an angle of 88.6degrees.

(a) Through what angle does it rotate during the next 1-s time interval?
(b) Through what angle during the third 1-s time interval?

2. Relevant equations

a = (wf - wi)/(tf-ti)

3. The attempt at a solution

i found a = 1.546, where do i go from here?

2. Oct 1, 2007

3. Oct 1, 2007

### BlueSkyy

okay, i came up with 132.87 degrees using one of the equations, do i subtract 88.6 degrees (the original rotation?)

4. Oct 1, 2007

### BlueSkyy

i am so confused, and everything i try is wrong

5. Oct 2, 2007

### Mentz114

Yes, assuming you have calculated the angle turned in 2 secs. It's not very helpful to say "using one of the equations". But I think you are wrong because I'd expect more turn in the second period than the first ( because the speed is increasing linearly).