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Math Help - Mechanics M1 Friction HELP

  1. #1
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    Mechanics M1 Friction HELP

    A particle is in equilibrium under action of three coplanar forces whose magnitudes and directions are shown in the diagram. Find values of P and Q.

    Sorry I dont know how to draw so Ive attatched it as a word document (p.s could someone tell me how)

    Sorry.
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  2. #2
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    \sum F_x = 0

    4 - Q\cos(20) = 0

    \sum F_y = 0

    Q\sin(20) - P = 0

    can you determine Q and P now?
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