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Homework Help: Calculation on weighting

  1. Jun 14, 2009 #1
    Weight of the trunk = 220 N (rests on the floor)
    Static friction between the trunk and floor = 0.41
    Kinetic friction = 0.32

    I want to find the minimum magnitude for horizontal force while i'm starting to push on the trunk. Secondly, what magnitude of the horizontal force must be apply in order to keep the trunk in constant velocity and last but not least, if i continuously to push with the force used to start the motion, what would be the acceleration of the trunk?

    Help me on this problem..:shy:
  2. jcsd
  3. Jun 14, 2009 #2


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    Homework Helper

    Welcome to PF.

    So start with what is the force of static friction?
    What is the force of kinetic friction?
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