1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Circular motion

  1. Dec 12, 2004 #1
    A satellite is orbiting the earth at an rate of 96 minutes. The radius of the earth and the mass is known. How do I calculate how high above earth the satellite is orbiting?

    I tried to use formula a= 4*(3.14^2)*(r+6380)/t

    But I dont have the acceleration, and If I would use newtons law of universal gravitation, I dunno where to start. Can someone help me?
     
  2. jcsd
  3. Dec 12, 2004 #2
    T = 2xPi SquareRoot(r^3/GM)
    Where G = 6.67 x 10^-11 and M is the mass of the earth, use r = radius..
    You have the time, 96 x 60 for seconds..
    Now, you're solving for r.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Circular motion
  1. Circular motion (Replies: 4)

  2. Circular Motion (Replies: 4)

  3. Circular motion (Replies: 8)

Loading...