a) What is hang time?

b) What happens to the:

i) speed as you go up during hang time (increase/decrease/stay the same)? as you come down in hang time (increase/decrease/stay the same)? Justify.

ii) velocity as you go up during hang time (increase/decrease/stay the same)? as you come down in hang time (increase/decrease/stay the same) How is it different from the previous question? Justify.

iii) acceleration as you go up during hang time (increase/decrease/stay the same)? as you come down in hang time (increase/decrease/stay the same)? Justify.

iv) force as you go up during hang time (increase/decrease/stay the same)? as you come down in hang time (increase/decrease/stay the same)? Justify.

b) How does each vary compared to something moving horizontally and speeding up after a stop light in a car?

c) Reflecting on Chapter 2, what happens with the net force and is an object in equilibrium when it is in free fall?