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 problem

  1. Oct 21, 2008 #1
    A .3 kg ball is dropped from a height of 2 m. It strikes the group and rebounds to a height of 1.5 m. The collision with the ground lasts for .01 seconds. The average force exerted by the ground on the ball is:

    b) 540
    c) 430
    d) 350

    So, i know that we have to use some type of formula involving mgh which equals velocity?

    I did:

    .3 [ rad 2mgh +rad 2 mgh] / .01 = 350

    is this correct?
  2. jcsd
  3. Oct 21, 2008 #2
    yes - from whence came your equation?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Momentum problem
  1. Momentum problems (Replies: 7)

  2. Momentum problem? (Replies: 2)