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19 July, 12:00

11. If a ball with an original velocity of zero is dropped from a tall structure and takes 7 seconds to hit the ground, what velocity does the ball have when it reaches the ground? A. 34.3 m/s B. 156.8 m/s C. 240.1 m/s D. 68.6 m/s

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  1. 19 July, 14:32
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    D) 68.6 m/s

    Final Velocity = Initial Velocity - (Gravity) (Time)

    Final Velocity = 0 m/s - (-9.8 m/s) (7s)

    Final velocity = 68.6 m/s
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