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Homework Help: Force in The X direction using Lever Arm

  1. Oct 17, 2012 #1
    1. The problem statement, all variables and given/known data

    What is the Force Needed in the X direction?

    I have a 500 lb Car and attached to the Wheel axle is a 12 inch long lever arm going straight down. The pivot point is at the axle and a cylinder is pushing the arm at the end of it. What force do I need to push this 500 pound car 3 inches forward?
    2. Relevant equations

    3. The attempt at a solution
    Do I sum the moments about that axle at which I would get (3*500)-12(Fx) where Fx=125lbs...that number seems high...
  2. jcsd
  3. Oct 18, 2012 #2


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    welcome to pf!

    hi drummer8807! welcome to pf! :smile:
    i don't understand the question :confused:

    horizontally, an insect could push it (slowly!)
  4. Oct 18, 2012 #3
    How much force if I push on that lever arm do I need to move it 3 inches is what I am suppose to find out....
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