SOLUTION: A ball is thrown upward with an initial velocity of 96 ft/s from a height 640 ft. It's height h, in fact after t seconds is given by h=-16t^2 + 96 +640. After how many seconds will

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A ball is thrown upward with an initial velocity of 96 ft/s from a height 640 ft. It's height h, in fact after t seconds is given by h=-16t^2 + 96 +640. After how many seconds will      Log On