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An archer is attempting to shoot an arrow over a wall that is 76 meters tall. Using the most efficient firing angle with no wind

An archer is attempting to shoot an arrow over a wall that is 76 meters tall. Using the most efficient firing angle with no wind resistance what is the minimum velocity the arrow must have at launch to get over the wall? Assume the wall is located in the middle of the arrows flight. What is the total flight time for the arrow and what is its total range?

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