Observer a Measures the Velocity of a Rocket as

question 11

Multiple Choice

Observer A measures the velocity of a rocket as and a comet as . Here are parallel and in the direction of the observer's positive x axis. The speed of the comet as measured by an observer on the rocket is:

• A) (u - v)/(1 - uv/c²)
• B) (u - v)/(1 - v²/c²)
• C) (u - v)/(1 - v²/c²)^1/2
• D) (u - v)/(1 + uv/c²)
• E) (u + v)/(1 - uv/c²)

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