mallorybabyy mallorybabyy

07-06-2016
Mathematics

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The formula S=16t^2 is used to approximate the distance S, in feet, that an object falls freely from rest in t seconds. The height of a building is 1203 feet. How long would it take for an object to fall from the top?

The object would fall for ( ) seconds

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apologiabiology apologiabiology

07-06-2016

ok so basiclly
how long will it take to fall 1203 feet?
S=the distance
so
1203=16t^2
find t
divide both sides by 16
75.1865=t^2
square root both sides
8.6710725980123128017662485854724=t
about 8.7 seconds
rounded to 9 seconds

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