inelastic_relativistic_collision_sol_3 - Inelastic...

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Inelastic Relativistic Collision A particle of mass m , moving at speed v = 4 c /5, collides inelastically with a similar particle at rest. (a) What is the speed v C of the composite particle? (b) What is its mass m C ? Solution by Ilkka Mäkinen: Call the frame of the particle at rest “the lab frame” and consider the center-of-mass (CM) frame. v lab frame u u u CM frame In order for momentum to be conserved the center-of-mass of the system must maintain a constant velocity u ; this will be the velocity of the composite particle in
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This note was uploaded on 10/30/2010 for the course MP 200 taught by Professor Guna during the Fall '10 term at Duke.

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