An artificial satellites moving in a circular orbit of radius 42250km. Calculate it's speed if it takes 24h to revolve around the earth .
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Answer:
Distance covered by the satellite in 24 hours
s=2πr
=2×3.14×42250=265464.58 km
Therefore speed of satellite,
v=
time taken
distance travelled
=
24×60×60
265464.58
=3.07 km s
−1
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