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In: Physics

On a frictionless air table, Puck A with mass ?A = 0.120 kg is moving at...

On a frictionless air table, Puck A with mass ?A = 0.120 kg is moving at speed ?A = 2.80 m/s in the +? direction when at the origin it hits Puck B (of mass ?B = 0.140 kg), which is initially at rest. Puck A is deflected in the collision into a final velocity of ?'A = 2.10 m/s at an angle of 30° from the + ? axis. The collision is not elastic.

a) Write down equations expressing conservation of momentum in both the ? and ? directions.

b) Solve the equations for velocity (?'B, ?'B) of Puck B.

c) What fraction of the initial kinetic energy is lost in this collision?

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