A stationary unstable particle has an average lifetime of 3 [m] in its rest frame. If its average lifetime as measured by a rocket frame moving at a speed of B relative to the particle is 5 [m] what is 3?
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![A stationary unstable particle has an average
lifetime of 3 [m] in its rest frame. If its average lifetime as
measured by a rocket frame moving at a speed of B relative to
the particle is 5 [m] what is 3?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb5f73f2f-aceb-4fab-9cfc-9170b94659da%2F42d64be4-c798-4078-8f16-c1c7f96de468%2F5eozw38_processed.png&w=3840&q=75)
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