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    Got part i okay but stuck on how to do second part? Thanks Name:  ImageUploadedByStudent Room1421362103.626960.jpg
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    (Original post by GM16)
    Got part i okay but stuck on how to do second part? Thanks Name:  ImageUploadedByStudent Room1421362103.626960.jpg
Views: 72
Size:  37.0 KB


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    (Original post by GM16)
    Got part i okay but stuck on how to do second part? Thanks Name:  ImageUploadedByStudent Room1421362103.626960.jpg
Views: 72
Size:  37.0 KB


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    diagram
    resolve forces vertically and horizontaly
    box is in equilibrium
    2 equations
    you find a and P
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    Resolve horizontally and vertically
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    (Original post by TeeEm)
    diagram
    resolve forces vertically and horizontaly
    box is in equilibrium
    2 equations
    you find a and P
    What two equations should I have? I've got one for horizontal but am confused as to how to make the second one


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    (Original post by GM16)
    What two equations should I have? I've got one for horizontal but am confused as to how to make the second one


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    vertically:

    Psina + weight = Normal reaction
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    (Original post by TeeEm)
    vertically:

    Psina + weight = Normal reaction
    I had that but was unsure if it was correct. What do I do from here? I had this question in a mock and got to here and wasn't sure what to do after


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    (Original post by GM16)
    I had that but was unsure if it was correct. What do I do from here? I had this question in a mock and got to here and wasn't sure what to do after


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    you solve the equations simultaneously (horizontal and vertical) by substitution
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    (Original post by TeeEm)
    you solve the equations simultaneously (horizontal and vertical) by substitution
    Ahh okay, thanks a lot


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    (Original post by GM16)
    Ahh okay, thanks a lot


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    hope it works
 
 
 
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