Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

santistebanc

Does the centrifugal force of Earth rotating around its axis reduces somehow the gravitational force of it? I mean would gravity feel stronger if Earth weren't rotating?

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. stan
    Best Response
    You've already chosen the best response.
    Medals 0

    The centripetal force an object feels due to the rotation of the earth about its axis varies with its latitude and points towards the rotation axis; the gravitational force follows the universal law of gravitation, and points towards the center of mass. These vectors add to give you your apparent gravitational force. In your rotating reference frame, you feel both forces as a centrifugal force

    • 2 years ago
  2. ac7qz
    Best Response
    You've already chosen the best response.
    Medals 3

    On earth, the difference at the equator is less than 1%. On Jupiter it's considerably more and causes the equatorial bulge. The difference between the apparent gravity at the pole and at the equator is something like 20%. Even more fun: since the centripetal force is perpendicular to the axis of rotation, and the gravity is along the radius, the apparent gravity is not parallel to the real gravity.

    • 2 years ago
  3. santistebanc
    Best Response
    You've already chosen the best response.
    Medals 0

    woow, then how fast is Earth to rotate in order to have moon's gravity on its equator? would it be possible to have zero gravity if it rotated real fast?

    • 2 years ago
  4. morgazmo
    Best Response
    You've already chosen the best response.
    Medals 0

    I figure it earth rotated fast enough it could negate the effect of gravity, don't know how fast it'd have to go, guessing pretty quick. Otherwise, were it at a standstill the force of gravity would be constant depending on height above sea level (and negligably overhead celestial objects)

    • 2 years ago
    • Attachments:

See more questions >>>

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.