Calculating Angular Velocity at the End of a Time Interval

[hoxbug]

Homework Statement

A wheel rotating about a fixed axis with a constant angular acceleration of 2.0 rad/s² turns through 2.165 revolutions during a 2.0 s time interval. What is the angular velocity at the end of this time interval?

Homework Equations

I was using the kinematic Equations
\theta_f = \theta_i + \omega_it + 0.5\alphat²

Am i doing something wrong?
The answers that I can choose are, 9.7 rad/s, 9.1 rad/s, 9.3 rad/s, 9.5 rad/s, 8.8 rad/s

All the answers I get are way larger

I must be doing something obviously wrong but I just can't see it.

 

[Maiq]

Lets see your work then.