An artificial satellite moving in a circular orbit of radius 36,000 km Calculate its
speed if it takes 24 hours to revolve around the earth
( 2.62 km/s).
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SOLUTION :-
Radius of orbit , r = 36,000 Km
Distance travelled by satellite to complete one orbit = circumference of the orbit = 2πr
= 2 × 22/7 × 36,000 = 226285.7 km
Time , t = 24 hr
therefore, Linear velocity of satellite = Distance / Time
= 226285.7 km/ 24h
= 9428.57 Km h ^ -1
= 9428.57 / 3600
= 2.62 km s ^ -1
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