Posted by Scott on Monday, November 19, 2012 at 9:24pm.
The ball spends half of the 5.7 s going up, and half coming down. So, in the last 2.85 s, the vertical distance it falls is
H = (g/2)(2.85)^2 = 39.8 meters.
That is also the vertical distance that it rises.
The distance of the fielder is not needed. You could use it to obtain the horizontal velocity (11.4 m/s) and launch angle. Vertical initial velocity = g*2.85 s = 27.93 m/s
Launch angle = arctan (27.93/11.4) = 67.8 degrees
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