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!

Friction between table and pool ball

  1. Dec 9, 2004 #1
    Assume the weight of a pool ball is .17kg. If the ball traveled 1.2 m in 5.3 seconds, what is the force of Friction and coefficient of friction between the pool ball and the table?

    Now, All I know how to do it calculate the normal force which is (9.8)(.17) = .1666 but where do i get from here???
     
  2. jcsd
  3. Dec 9, 2004 #2

    dextercioby

    User Avatar
    Science Advisor
    Homework Helper

    Hints:Use Newton's second law for the rotational motion.(torque is the sum of momenta of all forces).From there u should find µ.The normal force u calculated should be ten times bigger.
    [tex] I=\frac{3mr^{2}}{5} [/tex]

    Daniel.
     
  4. Dec 9, 2004 #3
    I find the acceleration to be 0.04272 m/s^2

    Therefore, can you not find the force of friction through F=ma?

    F(subF)=(.17kg)(0.04272 m/s^2)

    mew=F(subF)/F(subN)

    mew=0.007262/0.1666

    mew=0.0436

    check my work, i may be wrong
     
  5. Dec 9, 2004 #4

    dextercioby

    User Avatar
    Science Advisor
    Homework Helper

    My µ approximately equal to 0,003.

    Show your reasoning to depict you mistakes.

    Daniel.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Friction between table and pool ball
  1. Pool balls (Replies: 5)

Loading...