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## Main Question or Discussion Point

If the initial velocities of 2 particles are given, and the masses are equal, then is there some limit on what the final velocities can be?

m

(initial velocity of particle 2 is zero; v

v

To clarify my question if particle 1 has an initial velocity of 50 m/s, then this equation says the final velocity of particle 1 could be -550 m/s, and then the final velocity of particle 2 would be 600 m/s, which are much larger then the initial velocity of particle 1. So is there some limit on what values the final velocities can have?

m

_{1}v_{1i}+m_{2}v_{2i}=m_{1}v_{1F}+m_{2}v_{2F}(initial velocity of particle 2 is zero; v

_{2i}=0)v

_{1i}=v_{1F}+v_{2F}To clarify my question if particle 1 has an initial velocity of 50 m/s, then this equation says the final velocity of particle 1 could be -550 m/s, and then the final velocity of particle 2 would be 600 m/s, which are much larger then the initial velocity of particle 1. So is there some limit on what values the final velocities can have?