(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

In frame S , particle 1 is at rest and particle 2 is moving to the right with velocity v.

Consider frame S ′ , moving relative to S , with speed u. Find the value of u such that

the two particles appear in S ′ to be approaching each other with equal but opposite

velocities.

I don't see here how you can get the particles to approach each other.

1. The problem statement, all variables and given/known data

Calculate the range of speeds for a particle of mass m in which the classical relation

for kinetic energy is within 1% of the correct relativistic value.

For this can I use K/T = 0.01 and solve for the velocity of the mass, where K is newtonian KE and T is relativistic KE?

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# Homework Help: Two SR Questions

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