If the initial angular velocity is $-3\mathrm{.}1$ rad$/$s$,$ then what is the angular velocity, in radians per second, at time $23\mathrm{.}75$ s$?$

 

A detailed graph of angular acceleration versus time is shown. a(rad/s) +5.0- -5.0 5.0 10.0 15.0 1 20.0 I 25.0 t(s)