A pion decays into a muon and a neutrino. In the rest frame of the pion, the muon always has a speed of 0.507c. If a beam of pions is moving at 0.600c, what will be the speed of the muons in the lab frame if
(a) the muon is emitted traveling in the direction of the beam.
(b) What will be the speed of the muons emitted backwards?
A pion decays into a muon and a neutrino. In the rest frame of the pion,...