A particle known as a pion lives for a short time before breaking apart into other particles. Assume it is moving at a speed of 0.988c, and an observer who is stationary in a laboratory measures the particle's lifetime to be 4.00 x 10-8 second.
(a) Find the lifetime according to a hypothetical person who is riding along with the pion?
(b) According to this hypothetical person, obtain how far does the laboratory move before the pion breaks apart?