To start, I have the solution to this problem (with included steps) in front of me. Finding the answer is not the problem. What I want to know is, being a beginner in physics, what are the basic thought processes that would cause one to move toward a solution? What does one consider when finding these answers? I hope this question makes sense... Here is the problem: A grocery cart with a mass of 15 kg is pushed at constant speed along an aisle by a force Fp = 12 N which acts at an angle of 17° below the horizontal. Find the work done by each of the forces on the cart if the aisle is 12 m long. work done by the applied force? work done by the frictional force? work done by the normal force? work done by the gravitational force?