A wheel is rotating at an angular speed of 20 rad/s. If a constant torque is applied to bring it to rest in 10 seconds, what is the angular acceleration?

$$−1rad/s^2$$

$$−1rad/s^2$$

0%

$$−2rad/s^2$$

$$−2rad/s^2$$

0%

$$−0.5rad/s^2$$

$$−0.5rad/s^2$$

0%

$$−4rad/s^2$$

$$−4rad/s^2$$

0%