A dock worker pushes a 150.0 kg crate up a ramp that is 3.00 m high and 15.00 m long into the cargo bay of a ship. He exerts a 900.0 N force parallel to the ramp. a. Find both the mechanical advantage and ideal mechanical advantage of the ramp. Show your calculations

b. What is the efficiency of the ramp? Show your calculations

c. Include a diagram