A spaceship in distress sends out two escape pods in opposite directions. One tr

Question

A spaceship in distress sends out two escape pods in opposite directions. One travels at a speed v1 = + 0.58 c in one direction, and the other travels at a speed v2 = ? 0.78 c in the other direction, as observed from the spaceship.

Part A

What speed does the first escape pod measure for the second escape pod?

A spaceship in distress sends out two escape pods in opposite directions. One travels at a speed v1 = + 0.58 c in one direction, and the other travels at a speed v2 = ? 0.78 c in the other direction, as observed from the spaceship.

Part A

What speed does the first escape pod measure for the second escape pod?

Explanation / Answer

Given,

v1 = 0.58 c

v2 = 0.78 c

speed of the second pod with respect to the first is

V = [ v1 + v2 ] / [ 1+ ( v1* v2)/c2]

= [1.36 c ] / [1+ 0.452 ]

= 0.9364 c ------------ (Answer)

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