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!

Cue ball force(?) at impact with other ball

  1. Aug 8, 2011 #1
    When a cue ball is driven into another ball, it is either not accelerating or decelerating at impact. It has momentum but not (positive) force. What (work?) is imparted to the struck ball, and in what units of measurement?
  2. jcsd
  3. Aug 9, 2011 #2


    User Avatar
    Homework Helper

    If it's a straight line collision with no spin on the cue ball at the time of impact, then during the collision, the cue ball and target ball compress at the point of contact, the cue ball decelerates, and the target ball accelerates. Billiard balls are very stiff, so the duration of the collision is a short period of time.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook