Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Fictitious forces

  1. Mar 5, 2015 #1
    Let's say there is a cart with a pendulum inside it. The cart then starts accelerating, while an observer on the ground remain still. I was told that the observer, standing still, would not observe any fictitious forces on the pendulum, so how does he explain the pendulum swinging backwards?
     
  2. jcsd
  3. Mar 5, 2015 #2

    Dale

    Staff: Mentor

    The pendulum doesn't swing backwards for him. It accelerates forwards a little slower than the cart does.
     
    Last edited: Mar 5, 2015
  4. Mar 5, 2015 #3

    A.T.

    User Avatar
    Science Advisor
    Gold Member

    The term "observer" refers to a frame of reference. In a ground fixed coordinate system the pendulum never moves backwards.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Fictitious forces
  1. Fictitious force (Replies: 0)

  2. Fictitious Forces (Replies: 4)

  3. Fictitious Forces (Replies: 10)

Loading...