The disk has a mass of 20 kg and is originally spinning at the end of the strut with an an...

The disk has a mass of 20 kg and is originally spinning at the end of the strut with an angular velocity of ω = 60 rad/s. If it is then placed against the wall, for which the coefficient of kinetic friction is μk = 0.3 determine the time required for the motion to stop. What is the force in strut BC during this time?