Question 459941: I have a question about height, please help
The height of a building is 1582 ft. How long will it take an object to fall to the ground from the top. Use the s= 16t^2, where s is the distance, in feet, traveled by an object falling freely from rest in t seconds. Thank you
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! he height of a building is 1582 ft.
How long will it take an object to fall to the ground from the top.
Use the s=16t^2, where s is the distance, in feet, traveled by an object falling freely from rest in t seconds.
:
Let the force of gravity be negative, the ground = 0
-16t^2 + 1582 = 0
simplify, divide by -16, results:
t^2 - 98.875 = 0
t^2 = 98.875
t = 
t = 9.9436 secs to hit the ground from 1582 ft
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