1. Science
2. Physics
3. a rocket propels itself rectilinearly by emitting radiation ie photons...

# Question: a rocket propels itself rectilinearly by emitting radiation ie photons...

###### Question details

A rocket propels itself rectilinearly by emitting radiation (i.e. photons with velocity c) in the direction opposite to its motion. It continues to do so until it attains a velocity V relative to its initial rest-frame. Find the ratio of the initial to the final rest-mass of the rocket considering just the 4-momentum at the beginning and at the end of acceleration.