Griffiths Introduction to Elementary Particles · Problem 3.5

Symmetries — David J. Griffiths

Physics — QFT · relativistic-velocity-addition

Problem

As the outlaws escape in their getaway car, which goes

\frac{3}{4}c

, the cop fires a bullet from the pursuit car, which only goes

\frac{1}{2}c

. The muzzle velocity (speed relative to gun) of the bullet is

\frac{1}{3}c

. Does the bullet reach its target (a) According to prerelativistic physics? (b) According to relativity?