Question

The relativistic kinetic energy of a particle is three times its rest mass energy. Find the: a) Lorentz factor and speed parameter b) velocity (in m/s) of the particle.

Answer 1

We use the standard inertial frames S and S

0 which are set up such that the x and x

0 axes coincide and

the y and y

0 axes and z and z

0 axes are parallel. Seen from S, S

0 moves in the positive x-direction with speed

v and, seen from S

0

, S moves in the negative x

0

-direction with speed v. Furthermore, it is imagined that in

each inertial frame there is an infinite set of recording clocks at rest in the frame and synchronized with each

other. Clocks in both frames are set to zero when the origins O and O0

coincide. KHKHJRF