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Math Help - Complex Maths - Measurement

  1. #1
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    Complex Maths - Measurement

    As part of my Residential Drafting course I'm required to complete Complex Mathematical concepts, which I'm really struggling with. Your answer is really appreciated:
    Q: A mass rests on an area of 80mm2 and exerts a force of 320 kg m/s2. Express the pressure exerted on this area in kN/cm2.
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  2. #2
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    Quote Originally Posted by Risrocks View Post
    As part of my Residential Drafting course I'm required to complete Complex Mathematical concepts, which I'm really struggling with. Your answer is really appreciated:
    Q: A mass rests on an area of 80mm2 and exerts a force of 320 kg m/s2. Express the pressure exerted on this area in kN/cm2.
    P = \frac{F}{A} = \frac{320~N}{80~mm^2} = 4~\frac{N}{mm^2}

    Now to change the unit:
    \left ( \frac{4~N}{1~mm^2} \right ) \cdot \left ( \frac{1~kN}{1000~N} \right ) \cdot \left ( \frac{10~mm}{1~cm} \right )^2
    (Note that the last factor is squared!)

    =0.4~kN/cm^2

    -Dan
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  3. #3
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    Fantastic ... thanks for your quick reply!
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