Q1. A basketball player grabbing a rebound jumps 70.80 cm perpendicularly. How much total time (ascent and descent) does the player spend (a) in the top 11.2 cm of this jump and (b) in the bottom 11.20 cm? Do your results describe why such players seem to hang in the air at the top of a jump?

Q2. (a) If the maximum acceleration that is tolerable for passengers in a subway train is 1.64 m/s2 and subway stations are located 836 m apart, what is the maximum speed a subway train can attain between stations? (b) What is the travel time between stations? (c) If a subway train stops for 23s at each station, what is the maximum average speed of train, from one start-up to the next?