SOLUTION: The equation h=-16t^2-32t+320 gives the height od a ball, thrown downward from the top of a 320-ft building with an initial velocity of 32ft/s. Find the time it takes for the ball

Algebra ->  Algebra  -> Quadratic Equations and Parabolas -> SOLUTION: The equation h=-16t^2-32t+320 gives the height od a ball, thrown downward from the top of a 320-ft building with an initial velocity of 32ft/s. Find the time it takes for the ball       Log On

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Question 46660: The equation h=-16t^2-32t+320 gives the height od a ball, thrown downward from the top of a 320-ft building with an initial velocity of 32ft/s. Find the time it takes for the ball to reach a height of 64ft.
Answer by Nate(3500) About Me  (Show Source):