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!

Homework Help: Why is there no normal force?

  1. Mar 6, 2014 #1

    So why does normal force of the wheel not counted or drawn in the diagram??
    Isn't it that whenever there's mg, there's also Fnormal?


    Attached Files:

  2. jcsd
  3. Mar 6, 2014 #2
    It looks like it's because the problem involves the wheel going up off the ground to the next step, so if the force is large enough, then the wheel will be up off the ground and so there won't be a normal force.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted