You are on the edge of a building roof, 50.0 m above the ground. You drop a ball toward the ground. (Ignore air resistance, g = 9.80 m/s2).1)  (1)How long (in seconds) will it take for the ball to touch the ground? (2) What is the final velocity of the ball when it touches the ground?

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ISBN:9781938168000
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Chapter2: Kinematics
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You are on the edge of a building roof, 50.0 m above the ground. You drop a ball toward the ground. (Ignore air resistance, g = 9.80 m/s2).1) 

(1)How long (in seconds) will it take for the ball to touch the ground?

(2) What is the final velocity of the ball when it touches the ground?

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