Question

an artificial satellite is moving in a circular orbit of radius nearly 42 km calculate its linear velocity if it takes 24 hours to revolve around the earth

Answer 1

We know that
R=42 km
Circumference=2πr=2×42×22/7=1848/8km
Velocity=1848/7/24=11km/h

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!