A motorcycle, which consists of an initial linear speed of 6.3 m/s, decelerates to a speed of 1.9 m/s in 5.1 s. Each and every wheel consists of a radius of 0.70 m and is rotating in the counterclockwise (positive) direction.
(i) Determine the constant angular acceleration? (Point out direction by the sign of the angular acceleration.)
(ii) Determine the angular displacement (in rad) of all wheels?