SOLUTION: A coin is dropped from the top of the Washington Monument (a height of 550 feet) and its height above ground is given by s(t)= -16t^2+550, find the time when the coin reaches the g

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Question 721181: A coin is dropped from the top of the Washington Monument (a height of 550 feet) and its height above ground is given by s(t)= -16t^2+550, find the time when the coin reaches the ground level.
Answer by Alan3354(69443) About Me  (Show Source):