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###### Sudarshan posted an Question
May 05, 2020 • 16:16 pm 30 points
• IIT JAM
• Physics (PH)

# Q10. an astronaut in a spaceship has a mass 75kg in the rest frame of the spaceship. the spaceship's length in its rest frame is 1150 m while its length as obse

Q10. An astronaut in a spaceship has a mass 75kg in the rest frame of the spaceship. The spaceship's length in its rest frame is 1150 m while its length as observed from the earth is 325 m The total energy of the astronaut in the earth's frame will be approximately: (a) 75 (c) 2.4x10 J (b) 750 J (d) 6.8x108 J

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• ##### Somnath

See the attachment.

• ##### Ruby negi Best Answer

i did both methods for funding total energy... do the method in exam that need less time or that require less calculation.... best regards.

finding**

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