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An object falls 5 meters during the first second, another 20 meters during the second second, and then 80 meters more during the third second. If this pattern continues, how far does the object fall during the first 5 seconds?

 Mar 1, 2016
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The  total distance is given by :

 

5 [ 1 - 4^5] / [1 - 4]  =  1705 m

 

 

 

cool cool cool

 Mar 1, 2016

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