Physics

Physics, 20.08.2019 16:00, hananbarakat

How do you calculate the initial speed given time and displacement?
the question is: the longest kick in cfl history was 83.2m. if the ball remained in the air for 4.12s, determine its initial speed.
i calculated it several times and got the same answer, 40.38m/s, but the textbook says it's 28.6m/s.

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