SOLUTION: An object is dropped off a building that is 144 feet tall. After how many seconds does the object hit the ground? (s = 16t2) : How long to fall 144 ft at a velocity of 16 ft/se

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Question 300954: An object is dropped off a building that is 144 feet tall.
After how many seconds does the object hit the ground? (s = 16t2)
:
How long to fall 144 ft at a velocity of 16 ft/sec/sec
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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An object is dropped off a building that is 144 feet tall. After how many seconds does the object hit the ground? (s = 16t2)
:
How long to fall 144 ft at a velocity of 16 ft/sec/sec
:
16t^2 = 144
Simplify, divide both sides by 16
t^2 = 9
t = 3 seconds