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Physics Free Body Diagram Question

  1. Dec 2, 2008 #1
    Draw and label the free body diagram
    of a block on a plane inclined 30Efrom the
    horizontal. .There is friction and the block is
    stationary The magnitudes of the
    vectors must be correctly scaled and the
    directions correct.

    3. The attempt at a solution

    Draw 30 degree angle but I don't know how to factor in friction for this block. Please help with this free body diagram.
  2. jcsd
  3. Dec 2, 2008 #2
    To determine the direction of friction, it is worth recalling that friction always acts in the opposite direction of the motion of the object. In which direction is the block "trying" to move? Also, the block is stationary: what does this tell you about the magnitude of friction?
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