SOLUTION: An object is dropped from 39 feet below the tip of the pinnacle atop one of the 1483-foot-tall Petronas Twin Towers in Kuala Lumpur, Malaysia. (Source: Council on tall buildings an

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Question 211552This question is from textbook Beginning & Intermediate Algebra
: An object is dropped from 39 feet below the tip of the pinnacle atop one of the 1483-foot-tall Petronas Twin Towers in Kuala Lumpur, Malaysia. (Source: Council on tall buildings and Urban Habitat) The height h of the object after t seconds is given by the equation h = -16t^2 + 1444. Find how many seconds pass before the object reaches the ground. This question is from textbook Beginning & Intermediate Algebra

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
h = -16t^2 + 1444
At impact, h = 0
-16t^2 + 1444 = 0
t^2 = 1444/16
t = 38/4
t = 9.5 seconds