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A hockey puck moving due east with speed 1.00 m/s collides with an identical puck moving 40 degrees south of west with speed 2.00 m/s. After they collide, the first puck is moving south with speed 1.50 m/s. What is the direction and speed of the second puck?

  • physics -

    break up each puck into N, E components. Then use the law of conservation of momentum in each direction.

    notice the M's divide out. Solve for Xn, the north component of the second puck.
    solve for Xe, the east component of the second puck.

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