Question 1032106
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The distance that a free falling object falls is directly proportional to the square of the time it falls (before it hits the ground).  
If an object fell 50 ft in 5 seconds, how far will it have fallen by the end of 9 seconds?  (Leave the variation constant in 
fraction form or round to at least 2 decimal places.  Round your final answer to the nearest foot.) 
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I will not consider the solution of this problem, but I'd like to make a small notice.


Near the Earth surface, the free fall acceleration is 32 {{{ft/s^2}}} (approximately. See <A HREF=https://en.wikipedia.org/wiki/Gravitational_acceleration>this article</A> of Wikipedia). 


Accordingly, the free falling body falls {{{(32*5^2)/2}}} = 400 ft in the first 5 seconds.