a.) an astronaut is standing in a spacecraft PERPENDICULAR to its distance of mo

Question

a.) an astronaut is standing in a spacecraft PERPENDICULAR to its distance of motion. An observer on the earth finds that the spacecraft has a speed of 0.600c and that the astronaut is 1.8m tall. what is the height of the astronaut as measured by one of his fellow astronauts in the spacecraft? (b) Another astronaut in the same spacecraft is standing in the spacecraft PARALLEL to its direction of motion. An observer on the earth finds that this astronaut is 1.3m tall. What is the length of this astronaut as measured by one of his fellow astronaut in the spaceship?

Explanation / Answer

a) it will simply be 1.8m becuase the length is perpendicular to the velocity

b)now we have to apply length contraction because the length is parallel to the velocity

L=Lo (1-v2/c2)

now pllug in what we know

1.3=Lo (1-.62)

Lo=1.625m

hope that helps

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