Lydia proposes to send an interstellar probe off in stages. The first stage, traveling radially outward at 0.500 c relative to Earth, will send off a second stage traveling in the same direction as the first stage at a speed of 0.500 c relative to the first stage. Finally, the second stage will send off a third stage traveling in the same direction at 0.500 c relative to the second stage

Relative to Earth, the speed of the third stage will have a magnitude of
a. 0.500 c.
b. 0.800 c.
c. 0.929 c.
d. 0.972 c.
e. 1.500 c.


c

Physics & Space Science

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