The homogeneous disk (mass = 1.2 kg) is started on the horizontal surface with a forward speed of 2 m / s and a backward spin of ω rad / s. Determine the required value of ω if the disk is to come to a complete stop. The kinetic coefficient of friction between disc and surface is 0.6

0.3 m 2 m/s 1.2 kg Hx=0.6