An object is propelled vertically upward from the top of a 224-foot building. The quadratic function s (t) = - 16t^2+128t+225 models the balls height above ground, s (t), in feet, t seconds after it was thrown. How many seconds does it take till the object finnaly hits the ground? Round to the nearest tenth of a second if necessary
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Home » Mathematics » An object is propelled vertically upward from the top of a 224-foot building. The quadratic function s (t) = - 16t^2+128t+225 models the balls height above ground, s (t), in feet, t seconds after it was thrown.