1. Limited time only! Sign up for a free 30min personal 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!

Hey need help fast! (acceleration/grav)

  1. Sep 15, 2008 #1
    How does one answer this question? I reckon its a. But I want to be certain.

    Superman stands atop a very tall mountain and throws a baseball horizontally with a speed such that the baseball goes into a circular orbit around the earth. While the baseball is in orbit, the acceleration of the ball ______.

    a. depends on how fast the ball is thrown.
    b. is slightly less than 9.8 m/s
    c. = to 9.8 m/s
    d. is zero because the ball does not fall into the ground.

    thanks in advance.
  2. jcsd
  3. Sep 16, 2008 #2


    User Avatar
    Science Advisor
    Homework Helper

    Welcome to PF!

    Hi Bjorn-Hadrada! Welcome to PF! :smile:

    Hint: when the ball is in orbit, what forces are acting on it? :wink:
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Hey need help fast! (acceleration/grav)
  1. Need help FAST (Replies: 1)

  2. I need HELP FAST! (Replies: 1)

  3. Waves need help fast (Replies: 1)

  4. Lens need help fast (Replies: 1)