Using the scientific definition of work, the most work is done on a 10-kg box when a. A forklift lifts the box straight up onto a shelf 1.5 meters high.
b. a worker pushes the box up a ramp onto a shelf 1.5 meters high.
c. a worker climbs a stepladder holding the box and places it on a shelf 1.5 meters high.
d. the work done on the box is the same in each case.