bigartingMelizacke bigartingMelizacke

12-01-2017
Mathematics

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An earth satellite in circular orbit 1250 kilometers high makes one complete revolution evry 90 min. What is it linear speed? use 6400 kilometers for the radius of the earth.

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Jabbypappy Jabbypappy

12-01-2017

6400+1250=satellite orbit radius=7650

C=2pi*r
(Circumference formula)

7650*2=15300
15300pi=48,066.368
48066.368 is the circumference. It goes around the circumference once every 90 minutes, meaning every 90 minutes it travels 48066.368 km.

48066.368/90min=534.0707511102649

MINUTES:
It's speed is 534.0708 km/min

SECONDS:
It's speed is 8.9012 km/sec

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