Now, in the Tracker tool, add kinetic energy, KE, and potential energy, PE, to your table. (Click on Table, then check KE and PE in the Table Columns dialog.) Also, adapt the two graphs to show kinetic energy and potential energy vs. time. (Click on the
vertical axis labels; from the pop-up menu, select KE or PE.)
Step forward through the video a frame at a time, tracking the process in the table and on the two graphs. Based on your
observations, what can you say about your predictions in Part A and Part B concerning the potential and kinetic energy?

momentum of soft ball three times less than baskey ball

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.