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Motion question

  1. Sep 20, 2011 #1
    1. The problem statement, all variables and given/known data

    RZiwx.png

    3. The attempt at a solution
    define RHS as +ve
    in a part, i have calculared that force by conveyor is +1.962N

    in b part,
    Aer7X.png
    then, to balance force, 4.91sin@+1.962=1.962cos@ => @=-43.6'
    i an confused about the negative sign... what is my problem?
     
  2. jcsd
  3. Sep 20, 2011 #2
    Your free body diagram is missing a normal force due to the belt
     
  4. Sep 22, 2011 #3
    that's true, thx
     
  5. Sep 23, 2011 #4
    help =[
     
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