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Unformatted text preview: the CM is zero relative to the CM.) Since P sys = M V cm , then P sys = 0 since V cm = 0 in the CM reference frame. This is sometimes referred to as the zeromomentum RF. 2. Two particles, before a collision in the CM reference frame, must have equal and opposite momenta. m 1 m 2 V 1 V 2 V cm cm m 1 m 2 U 1 U 2 cm Original RF CM RF V cm =0 A. After a perfectly inelastic collision the objects remain at rest. B. After a 1D elastic collision, the velocity of the particles are equal and opposite to their initial velocities....
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This note was uploaded on 09/02/2011 for the course PHYS 4a taught by Professor Luna during the Spring '11 term at DeAnza College.
 Spring '11
 Luna
 Center Of Mass, Mass

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