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Math Help - Mechanics vector problem

  1. #1
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    Mechanics vector problem

    The attachment shows a particle of mass 2.6kg maintained in equilibrium in a veritical place by forces of 5P N and 12 P N which are perpendicular. Find

    a) Ѳ the angle at which the force of 5P N is inclined to the vertical
    b) the value of P

    any help would be great
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  2. #2
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    equilibrium in the y-direction ...

    5P\cos{\theta} + 12P\sin{\theta} = 2.6g

    equilibrium in the x-direction ...

    5P\sin{\theta} = 12P\cos{\theta}

    solve the system for P and \theta
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