Solve the all parts of following question given below:
Question: A ball is thrown straight up at 15.0 m/s.
Part A: How much time does it take for the ball to be 5.00 m above its release point?
Part B: How fast is the ball moving when it is 7.00 m above its release point?
Part C: How much time is required for the ball to reach a point that is 7.00 m above its release point? Why are there two answers to part (c)?
Please show your work and steps, so I can understand process. Thank you!