SOLUTION: The height of an object dropped from the roof of an eight story building is modeled by: h(t) -9t^2 + 81, 0 <t<2. Here, h is the height of the object off the ground in feet, t secon
Question 1165248: The height of an object dropped from the roof of an eight story building is modeled by: h(t) -9t^2 + 81, 0 Found 2 solutions by Alan3354, ikleyn:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! The height of an object dropped from the roof of an eight story building is modeled by: h(t) -9t^2 + 81, 0
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Close.
There's no equal sign.
h(t) = -9t^2 + 81
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Find h(2)
Find h(0)
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Then the avg = (h(2) - h(0))/(2-0)
One the Earth, where we live, the right equation for the free fall is
h(t) = -4.9*t^2 + 81, (if the initial height is 81 meter)
where h(t) is the height in METERS (NOT IN FEET).
In feet,
h(t) = - 16*t^2 + 81 (if the initial height is 81 feet)
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