$\pi$ radians per second for velocity I have a question that I need clarifying. To calculate the final angular velocity from initial angular velocity, angular acceleration and time I would do $V_{f} = V_{i} + a * t$. this seems relatively straight forward however I have been given these values and i'm not sure how to work with them properly.

$V_{i}$ = $\pi$ rad/s
$a$  = $2\pi$ rad/$s^{2}$
$t$  = $10$s

What would be a solution to working with $\pi$ radians to find the final velocity?
Thank you for any answers.

You seem to have the right idea from the equation you posted, so I'm not sure what part of the process you're getting stuck on. I'll post a solution and maybe you can clarify what parts are difficult for you.
$V_{f} = V_{i} + a*t$ for constant acceleration $a$. Since all of our units are already consistent, i.e., the initial velocity is given in radians per second, the time elapsed is given in seconds, and the acceleration is given in radians per second squared, we simply plug in and evaluate. We find: 
$V_{f} = \pi \text{ rad/s} + 2\pi \text{ rad/}s^{2}*10\text{s} = 21\pi \text{ rad/s}$.  
