SOLUTION: An object is shot upward with an initial velocity of 240 feet per second so that its height s (in feet) above the ground after t seconds is given by s=-16t^2+240t. For what values

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Question 43622: An object is shot upward with an initial velocity of 240 feet per second so that its height s (in feet) above the ground after t seconds is given by s=-16t^2+240t. For what values of t will the object be at least 416 feet above the ground? Any help would be appreciated, thanks!

Answer by Nate(3500) About Me  (Show Source):