Q1. A ranger in a national park is driving at 56km/h while a deer jumps onto the road 69 m ahead of the vehicle. After a reaction time of t s, the ranger applies the brakes to produce a deceleration of 2.9 m/s^2. What is the maximum reaction time allowed if ranger is to avoid hitting the deer?

Q2. A basketball player grabbing a rebound jumps 73.3 cm vertically. How much total time (ascent and descent) does the player spend (a) in the top 13.1 cm of this jump and (b) in the bottom 13.1 cm? Do your results explain why such players seem to hang in air at the top of a jump?