A rocket has a circular orbit 1000km above the surface of the earth. If the rocket travels at a constant speed of 18000km per hour, how long will it take to complete 48 orbits. Assuming the earth has a radius of 6400km.
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Step-by-step explanation:
A rocket has a circular orbit =1000km
speed of the rocket=18000km/h
So time taken by rocket to complete 1round =2πr/v
=1000/18000=1/18h
so, 48orbits =1/18×48
=2.67h
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