The height of a building is 1446 feet. How long would it take an object to fall to the ground from the top, using the formula #d = 16t^2#?

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Answer 1 · 2017-07-02T02:59:22

#t~~9.507# seconds

Substitute #1446# for #d# and go on from there:

#1446=16t^2#

Divide both sides by #16#

#90.375=t^2#

Take the square root of both sides:

#sqrt90.375=sqrt(t^2#

Solution:

#t~~9.507# seconds