1. The problem statement, all variables and given/known data A cart connected to a massless rope has mass 25kg. The rope passes over a fixed pulley (The rope is pulled upwards, the car moves to the right, the pulley is attached to a pole in the ground.) The cart accelerates horizontally at 1.4m/s^2, find the upward force on the pulley. 2. Relevant equations F=ma 3. The attempt at a solution The answer seems to either be F=(25kg)(1.4m/s^2) or F=0, but I can't decide which it is since I can't figure out what the free body diagram for the pulley would look like.