1) A human cannonball is launched straight up from the top of100- meter-high rampart at 400 m/s. How long is the cannoneer inthe air above the rampart? Answer: 81.6 s
2) A cheerleader is thrown straight up from the ground with aninitial velocity of 1.5 m/s. On the way down, she makes eye contactwith a fan when she is 2.8m above the field. How much time passesbetween the initial throw and when they make eye contact? Answer:1.05 s
3) You throw a basketball from the ground straight up in the airwith an initial velocity of 12.2 m/s. On its way down, it passesthrough a hoop 3.05 m above the ground. How long does it take theball to reach the ground after it passes through the hoop? Answer:0.28 s
I included the answers but I don't know how to get it!
