7.A spaceship is flying with a speed of 0.300c relative to the Earth. The spaceship fires...
7.A spaceship is flying with a speed of 0.300c relative to the Earth. The spaceship fires a missile with a speed of 0.600c relative to it. The speed of the missile as measured by an observer on Earth is 0.763c. If we assign the spaceship as reference frame S, the missile as reference frame S', and the Earth as the "event", which of the following is correct?
a) u = 0.600c; vx = 0.300c; v'x = 0.763c
b) u = 0.600c; vx = -0.763c; v'x = - 0.300c
c) u = 0.600c; vx = -0.300c; v'x = - 0.763c
d) u= - 0.600c; vx = 0.300c; v'x = 0.763c
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