King Arthur's knights use a catapult to launch a rock from their vantage point on top of the castle wall, 13 m above the moat. The rock is launched at a speed of 28 m/s and an angle of 32^{\circ} above the horizontal.

How far from the castle wall does the launched rock hit the ground?
please explain step by step how the answer is made.
thank you in advance.
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