A champion archer hits a bullseye in a target mounted

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A champion archer hits a bullseye in a target mounted on a wall a distance L away and situated at a height h above his bow.  Deduce the equation between the speed (at which the arrow left his  bow), the arrow's initial angle θ with the horizontal, the height, and the distance of the target  (whose solution the archer evidently knew.  Neglect air resistance). 

Reference no: EM13835355

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