• 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?

Answer rating: 100% (QA)

BElas... View the full answer