## College Physics (4th Edition)

The new angular velocity is $15.6~rad/s$
We can use conservation of angular momentum to find the final angular velocity: $L_f = L_0$ $I_f~\omega_f = I_0~\omega_0$ $\omega_f = \frac{I_0~\omega_0}{I_f}$ $\omega_f = \frac{(2.50~kg~m^2)(10.0~rad/s)}{1.60~kg~m^2}$ $\omega_f = 15.6~rad/s$ The new angular velocity is $15.6~rad/s$.