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Two pucks collide on a frictionless air-hockey table. The pucks have equal masses = 0.20 kg. Puck A has an initial velocity of 4.0 m/s

  • Two pucks collide on a frictionless air-hockey table. The pucks have equal masses  = 0.20 kg. Puck A has an initial velocity of 4.0 m/s in the positive x-direction and a final velocity of 2.0 m/s at an angle of 60° to the positive x-axis. Puck B is initially at rest. 

  • (a) Find the final velocity of puck B (magnitude and direction). 
  • (b) Is the collision elastic?

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