139, 6 MeV/c², resting in the laboratory,A pion of positive electric charge (n*) and mass m, =decays in a muon with the same electric charge (u*) and a neutrin of muon (v),The mass of the muon is equal to m, = 105,7 MeV/c² and that of the neutrin is practically null.a) Determine the muon speed according to an observer in the laboratory.b) What conservation laws should be considered in the present problem? Why?

Given data, Rest mass ofπ+=139.6 MeVC2rest mass of μ+=105.7 MeVC2rest mass of νμ=0

139,6 MeV/c², resting in the laboratory, A pion of positive electric charge (n*) and mass m, = decays in a muon with the same electric charge (u*) and a neutrin of muon (vu), + The mass of the muon is equal to m, 105, 7 MeV/c2 and that of the neutrin is practically null. a) Determine the muon speed according to an observer in the laboratory. b) What conservation laws should be considered in the present problem? Why?

139,6 MeV/c², resting in the laboratory, A pion of positive electric charge (n) and mass m, = decays in a muon with the same electric charge (u) and a neutrin of muon (vu), + The mass of the muon is equal to m, 105, 7 MeV/c2 and that of the neutrin is practically null. a) Determine the muon speed according to an observer in the laboratory. b) What conservation laws should be considered in the present problem? Why?