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M2 Help

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    8bi here http://store.aqa.org.uk/qual/gce/pdf...W-QP-JUN11.PDF
    Here is the MS: http://store.aqa.org.uk/qual/gce/pdf...W-MS-JUN11.PDF
    Do they basically just mean find the tension ?

    What does "the reaction of the bead on the wire" mean ? Is it the sum of the tension and parallel component of weight or just the tension or what ?
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    (Original post by member910132)
    8bi here http://store.aqa.org.uk/qual/gce/pdf...W-QP-JUN11.PDF

    Do they basically just mean find the tension ?
    If you're thinking about the bead being attached to the centre via a light rod, rather than being on a wire, then yes.

    NOTE: I say rod rather than string since the reaction could be away from the centre if the bead isn't moving fast enough.
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    (Original post by ghostwalker)
    If you're thinking about the bead being attached to the centre via a light rod, rather than being on a wire, then yes.

    NOTE: I say rod rather than string since the reaction could be away from the centre if the bead isn't moving fast enough.
    This question completely stumped me and I still don't get it. I can do all the maths fine but I have no idea what they actually mean by the normal from the bead on the wire.

    Thnx
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    (Original post by member910132)
    This question completely stumped me and I still don't get it. I can do all the maths fine but I have no idea what they actually mean by the normal from the bead on the wire.

    Thnx
    Draw a tangent to the circle at the bead, then draw the perpendicular to that tangent. And you now have the normal they are referring to.

    Corresponds to the tension/compression in the ficticious rod of my previous post.
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    1 day revision... would it be possible to get a B?
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    I dunno,

    Can anyone help me with this ?

    Edit: Solved

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Updated: June 20, 2012
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