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Two identical pucks are on an air table. Puck A has an initial velocity of 4.0 m/s in the positive x-direction. Puck B is at rest. Puck A collides elastically with puck B and A moves off at 1.8 m/s at an angle of +60° above the x-axis. What is the speed and direction of puck B after the collision? (Let angles above the +x-axis to be positive and below to be negative.) magnitude m/s direction °

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