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present a formal derivation of the formula (given above) that was used to calculate the kinetic energy of the arrow immediately after release from the bow.. repeated here: K = ½ x mgsH This is the exact wording of the question. Hope it helps, also r = sh.

Homework Statement present a formal derivation of the formula (given above) that was used to calculate the kinetic energy of the arrow immediately after release from the bow.. repeated here: K = ½ x mgsH Where m is mass, g is grav. acceleration and sH is horizontal velocity. My...