A small ball of mass m rolls at a constant speed v along a horizontal surface, then rolls down an incline and continues rolling along a lower horizontal surface with a constant speed 2v (see Figure Q6.26). Analyze the motion of the ball (the system) using a momentum approach. Identify segments of the ball’s motion where the ball’s momentum is changing (either in magnitude or in direction). Determine the direction of the impulse exerted on the ball during these segments and draw corresponding impulse vectors. Assume that the ball is in contact with the surface at all times and that it does not slip.
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