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    Shouldnt it be tan 4/3 ??
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    3/4 looks correct. (Intuitively, as the triangle gets tall and thin, the maximum angle of theta must be small, so it must be height/width, not width/height).
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    (Original post by DFranklin)
    3/4 looks correct. (Intuitively, as the triangle gets tall and thin, the maximum angle of theta must be small, so it must be height/width, not width/height).
    But tan = opp/adj
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    (Original post by Ari Ben Canaan)
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    When it is toppling (or about to), centre of mass is on top of point of toppling.

    So ummmm....look at the diagram (I actually dont know how to explain)

    See example 18 in new Edexcel M2 text book
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    (Original post by Ari Ben Canaan)
    But tan = opp/adj
    The diagram in the solution is wrong - the angle inside the 'small rectangle' is actually 90-\theta.
 
 
 
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