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    Hi, I was wondering how to find the centre of mass of a few things. I know what to do with a triangle, but what do you do with things like a semi-circle, a cone and a hemi-sphere?

    Thanks for any help you can give

    Attached below are some questions in this context:
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    Would look nicer if you saved it as a gif
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    Cheers for that, I'll keep that in mind.
    Seriously though;
    any help with the question?
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    it's really same as triangle but taking different position

    Triangular Lamina: 2/3 along the median from vertex
    Solid hemishpere, radius r : (3/8)r from centre
    Hemisphere shell, radius r : (1/2)r from centre

    I think these are included in the Formula Sheets
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    (Original post by sena168)
    I think these are included in the Formula Sheets
    Yeah your right, I checked out the OCR specification.
    Look at the attatchment (in GIF format!) to see what you get. Looks like everyting!
    Cheers
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    has anyone got answers for GIF VERSION of semi-circle (much prettier).gif question?

    I got 11.6 for the distance from B, but im not sure if its correct :confused:


    a night before the exam and still learning!
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    (Original post by u2o_uk)
    has anyone got answers for GIF VERSION of semi-circle (much prettier).gif question?

    I got 11.6 for the distance from B, but im not sure if its correct :confused:


    a night before the exam and still learning!
    Yeah, I got 11.6 too, should be right.
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    yep, night before - becoming too common for my liking, i really must revise earlier.

    this revision (i started at 11pm) is the only revision i will get for M2! i was so bad for phyiscs and business studies exams i had a last minute panic and stayed up all night.

    oops
 
 
 
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