<PRE><B>Question 178600</B>
The formula d=16t^2 gives the approximate distance in feet (d) traveled by a falling object in t seconds. Approximately how long would it take a baseball dropped from the top of the Gareway Arch in St. Louis to hit the ground if the arch is 630 feet high?
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d = 16t^2
630 = 16t^2
t^2 = 630/16
Positive solution:
t = sqrt630)/4
t = 6.27 seconds
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Cheers,
Stan H.</PRE>