The wheel has a mass of 25 kg and a radius of gyration k8 = 0.15 m. It is originally spinning at ω = 40 rad/s. If it is placed on the ground, for which the coefficient of kinetic friction is μc = 0.5, determine the time required for the motion to stop. What are the horizontal and vertical components of reaction which the pin at A exerts on A B during this time? Neglect the mass of AB.

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