Question

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

Answer 1

linear speed = distance traveled / duration of time
           = 42250*2π /24 kmph
           = 11061.024  kmph

Answer 2

Hey there!

Given,

Radius (r) = 42250 km

Time (t) = 24 hours

Distance will equal to perimeter of the orbit

= 2πr

= 2π * 42250

Speed of artificial satelite  

= 2π * 42250/24

= 11059 km/h

Hope It Helps You!