Solve the all parts of given question:
Question: A ball is dropped from rest at the top of a 480 meter tall building. the ball freely falls with constant acceleration for 6 seconds; at this time, The ball reaches a terminal velocity.
Part I: How far has the ball fallen when it reaches terminal velocity?
Part II: what is the terminal velocity of the ball?
Part III: What is the total time that the ball takes to reach the ground?
Part IV: What was the ball's initial speed when it was launched?
Part V: To what maximum height does the ball rise?
I need help to determine the total time that the ball takes to reach the ground.