A soccer player kicks a ball from the ground into the goal, which is located 17 meters away on the level playing field. The ball leaves the ground at an initial speed of 18m/s and at an initial angle above the horizontal of 23 degrees. Find the angle of the ball's velocity (with respect to the horizontal) as it enters the goal.
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It really can't be done unless you specify a specific height it enters the goal. I suspect the author mean enter the goal at ground level, but it was not so stated.
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