An artificial satellite is moving in a circular orbit of radius 42,350 km. Calculate its speed if it takes 24 hours to revolve around the Earth.

The radius of the orbit = 42350km 

Circumference of the orbit = 2$\pi$r

                                                 =$2\times3.14\times42350$

                                                 =2.66×10⁵ km

The time taken to complete one revolution around the earth is 24 hour

SPEED = $\frac{DISTANCE}{TIME}$

             =$\frac{2.66\times 10^{5}}{24}$

              =$11083.333$km/h

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Updated on: 10-Oct-2022

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