posted by Jacqueline .
A punter in a football game kicks a ball from the goal line at 60° from the horizontal at 25 m/s. What is the hang time of the punt?
Compute the time it takes for the vertical velocity component to become zero; then double it for the "hang time". It takes just as long going up as coming down.
To merit honors for your physics class work, you should attempt more of it.