1. The problem statement, all variables and given/known data A 1200kg car is being unloaded by a winch. At the moment shown the gearbox shaft of the winch breaks and the car falls from rest. During the car's fall, there is no slipping between the (massless) rope, the pulley, and the winch drum. The moment of inertia of the winch drum is 320kgm^2 and that of the pulley is 4kgm^2. The radius of the winch drum is 0.8m and that of the pulley is 0.3m. Find the speed of the car as it hits the water? Note: The winch pulley is on one side of the system with the smaller pulley in the middle. The car is then on the other side of the system hanging. The car is also 5m above the water. 2. Relevant equations I will states these in the form of linear motion because I don't know how to make omega and tao...etc vf = v1 +at Torque = I * Alpha Acceleration Tangential = radius * Alpha L (momentum) = I * omega 3. The attempt at a solution I have tried all kinds of attempts at the solution. I tired conservation of energy but I don't think that is the way. I tried conservation of momentum and I'm not sure how to set it up properly. I figure that once you get the tangential acceleration you can easily solve for tangential velocity. I don't know how to relate two pulleys together either. The equations ask for a radius and I know two radiuses. The book doesn't help much either. Thanks in advance. Any help is great.