An observer on Earth sees an alie
: .1om*+tpa,d:lvk1nphs z1iq4pgt on vessel approach at a speed of 0.60c. The Enterprise comes to the rescue (Fig. Below), overtaking the aliens while moving directly toward Earth at a speed of 0.90c relative to Earth. What is the relative speed of one vess
po 1ktsmv t+lih n.ao1q,g1pz:*4:dpel as seen by the other? u =
c