Solve the all parts of given question:
Question: A ball is thrown vertically upward with a speed of 16.0 m/s.
Part I: How high does it rise?
Part II: How long does it take to reach its highest point?
Part III: How long does the ball take to hit the ground after it reaches its highest point?
Part IV: What is its velocity when it returns to the level from which it started?
I am having a hard time understanding these questions. So if you answer please explain how you found the answers.