a window washer is suspended 36 feet below the roof of a 949-foot-tall building.

a window washer is suspended 36 feet below the roof of a 949-foot-tall building. f the window washer drops an object from this heigth, the object's height h after t seconds is given by the equation h=-16t^2+913. find how many seconds pass before the object reaches the ground round to the nearest hundredth of a second when necessary