Question: Problem 6 [9 points] A ball is thrown upward with 20m/s from a 60m tall building (Show all of your work Including a sketch) a)

Problem 6 [9 points] A ball is thrown upward with 20m/s from a 60m tall building (Show all of your work Including a sketch) a) [3 points] How long it will take to reach the ground? b) [3 points] What is the ball's velocity just before it hits the ground? c) [3 points] How long it will take to reach the ground if it is thrown downward at 20m/s

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