1.

An artificial satellite is moving uniformly in a circular orbit of radius 42250 km. Find it's speed if it takes 24hrs to revolve around the Earth.​

Answer»

Answer:

11,055.41 km/hr

Explanation:

GIVEN :

  • Radius of the CIRCULAR orbit = 42,250 km

  • Time taken to revolve AROUND the earth = 24 hrs

To find :

  • Speed it takes to revolve around the earth

Speed = distance / time

Distance = 2×3.14×r

Distance = 6.28×42,250

Distance = 2,65,330 kilo metres

The Circumference or the distance COVERED by the SATELLITE is equal to 2,65,330 kilometres

Time taken = 24 hrs

Speed = 265330/24

Speed = 11,055.41 km/hr

The speed of the satellite is equal to 11,055.41 km/hr



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