Sail E0 Webinar
Question
An artificial satellite is moving in a circular orbit of radius 4200 km around the earth. What is its speed if it takes one day to complete one revolution?
Options:
A .  4099 kmph
B .  3099 kmph
C .  1099 kmph
D .  2099 kmph
Answer: Option C
:
C
Given, the radius of the orbit, R=4200km
The time taken to revolve around the Earth, T=24hr(1day)
The speed of the satellite, v=Circumference of the orbitTime taken
=2πRT
=2×3.14×4200km24hr
=1099kmhr1
=1099kmph

Was this answer helpful ?
Next Question

Submit Solution

Your email address will not be published. Required fields are marked *

Latest Videos

Latest Test Papers