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!

Momentum question

  1. Oct 3, 2005 #1
    This is a question for my physics class I am stuck with.

    "Bob is standing on a log and his friend is trying to knock him off by throwing a ball at him. Bob can catch the ball or let it bounce off of him. Which of the two is more likely to topple Bob: catching the ball or letting it bounce off?"

    If he catches the ball, he could possibly dampen the blow by slowing its velocity. He can also control its impact area that way and therefore lessen the force of the ball in terms of force per area. However, if he stands still then his intertia is greater. So I can see either answer working.

    Am I thinking too hard on this or is it some sort of trick question? I'm a physics noob and I can't think stuff like this out very well. Thoughts and comments and flames welcome :eek:)
     
  2. jcsd
  3. Oct 3, 2005 #2

    Tide

    User Avatar
    Science Advisor
    Homework Helper

    It's not a trick question. If he bounces the ball, not only does he absorb the ball's momentum but he adds to it by reversing the direction of the ball.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Momentum question
  1. Momentum Question (Replies: 4)

  2. Momentum questions (Replies: 4)

  3. Momentum questions (Replies: 9)

  4. Momentum Question (Replies: 5)

  5. Momentum question (Replies: 5)

Loading...