1. An electric motor rotating a workshop grinding wheel at a rate of 71.9 rev/ min is switched off with a constant deceleration of 1.29 rad/s^2. How long does it take for the grinding wheel to stop? Answer in units of s. 2. Through how many radians has the wheel turned during the deceleration? Answer in units of rad.

1. An electric motor rotating a workshop grinding wheel at a rate of 71.9 rev/ min is switched off with a constant deceleration of 1.29 rad/s^2. How long does it take for the grinding wheel to stop? Answer in units of s. 2. Through how many radians has the wheel turned during the deceleration? Answer in units of rad.