A ball of mass m moving with velocity vi strikes a vertical wall. View Figure Th

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A ball of mass m moving with velocity vi strikes a vertical wall. View Figure The angle between the ball's initial velocity vector and the wall is theta i as shown on the diagram, which depicts the situation as seen from above. The duration of the collision between the ball and the wall is Delta t, and this collision is completely elastic. Friction is negligible, so the ball does not start spinning. In this idealized collision, the force exerted on the ball by the wall is parallel to the x axis. A)What is the final angle theta f that the ball's velocity vector makes with the negative y axis? B)What is the magnitude F of the average force exerted on the ball by the wall? Express your answer in terms ofvariables given in the problem introduction and/or v^ix. http://session.masteringphysics.com/myct/itemView?assignmentProblemID=20602399&frame;=banner

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