A ranger in a national park is driving at 49 km/h when a deer jumps onto the road 67 m ahead of the vehicle. After a reaction time of t s, the ranger applies the brakes to produce a deceleration of 3.5 m/s2. What is the maximum reaction time al- lowed if the ranger is to avoid hitting the deer?

A ranger in a national park is driving at 49 km/h when a deer jumps onto the road 67 m ahead of the vehicle. After a reaction time of t s, the ranger applies the brakes to produce a deceleration of 3.5 m/s2. What is the maximum reaction time al- lowed if the ranger is to avoid hitting the deer? Answer in units of s
with what speed must a ball be thrown vertically from ground level to rise to a maximum height of 50m?
Your starting place on a track is at the 30 centimeters mark. What is your new position if you move 10 centimeters to the left of this position?