Question

An artificial satellite is moving in circular orbit of radius 42250km. Calculate it's speed if it takes 24 hours to revolve around earth. ​

Answer 1

Answer:

11055.41 km/hr

Explanation:

time : 24 hours

An artificial satellite is moving in circular orbit of radius = 42250km

distance covered by the satellite = circumference of circular orbit = $2\pi r$

        =  2 × 3.14 × 42250

        = 265330 km

we know that    

                        $speed = \frac{distance }{time}$

                                  = $\frac{265330}{24}$ km/hr

                                  = 11055.41 km/hr

Answer 2

Answer :

Given ,

Radius of the orbit = 42250 km

Therefore , circumference of the orbit = 2 × π × 42250 km = 265571.42 km

Time taken for the orbit = 24 hours

Therefore , speed of the satellite = 11065.4 km h-¹

The satellite orbits the earth at a speed of 11065.4 km/h .