Calculate the potential, kinetic and mechanical energy of a water balloon that is dropped from a height of 15m when:
a. The balloon is at 10 m from the ground. b. The balloon has traveled 10 m.
c. The balloon is hitting the ground.
d. The balloon’s mass is 2.5 kg.
Hint: at the highest point the kinetic energy is 0, and at the lowest point the potential
energy is 0.

You can find results and justify them? you can test your hypothesis

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j

Ithink the answer is d