A boy located at point A halfway between the center O of a
Chapter 13, Problem 13.169(choose chapter or problem)
A boy located at point A halfway between the center O of a semicircular wall and the wall itself throws a ball at the wall in a direction forming an angle of \(45^{\circ}\) with OA. Knowing that after hitting the wall the ball rebounds in a direction parallel to OA, determine the coefficient of restitution between the ball and the wall.
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