Question

An artificial satellite is moving in a circular orbit of radius
42250 km. Calculate its speed if it takes 24 hours to revolve
around the earth.
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Answer 1

Answer:

given, radius=42250 kms

therefore, circumference=2πr

=2×π×42250 kms

=265571.42kms

time taken for the orbit =24hours

=265571.42/24

=11065.47 kms

converting unit

11065.47/3600

=3.07 km/s...