A factory worker pushes a 31.7 crate a distance of 5.0 along a level floor at constant velocity by pushing downward at an angle of 30 below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.26.
Part A: What magnitude of force must the worker apply to move the crate at constant velocity?
Part B: How much work is done on the crate by this force when the crate is pushed a distance of 5.0 ?
Part C: How much work is done on the crate by friction during this displacement?
Part D: How much work is done by the normal force?
Part E: How much work is done by gravity?
Part F: What is the total work done on the crate?