5) A kid is given the task of putting a 100 N bowling ball on a shelf 2 meters off the ground. The ball starts on the ground and must be raised up to the shelf.
e. How much Egrav does the ball have on the floor?

f. How much Egra will the ball have on the shelf?

g. How much working, or change in energy, does the boy have to do to the ball?
(Hint: Find working using "W = E,-E," and use answers from a and b above.)