The motor M pulls in its attached rope with an acceleration ap = 6 m / s2. Determine the t...

The motor M pulls in its attached rope with an acceleration ap = 6 m / s2. Determine the towing force exerted by M on the rope in order to move the 50-kg crate up the mchned plane. The coefficient of kinetic friction between the crate and the plane is μk = 0.3. Neglect the mass of the pulleys and rope.