Question

10. 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

Speed=(2×22/7×radius)/Time

=(2×22/7×42250)/24

=265,571.429/24

=11,065.4762 km/h

Answer 2

Answer:

Radius of circular orbit ,r = 42250km

time taken by satellite,t = 24h

24 × 3600 =86400s.

speed of the satellite = 2πr/t

2 × 22/7. × 42250 / 86400

3.073km /s

hence ,the speed of artificial satellite is 3.073km/s

hope this will help u