A level maths

Discussion in 'Bulletin Board ARCHIVE' started by Guest, Nov 17, 2005.

  1. Gue

    Guest Guest

    Mechanics this

    A particle is placed on a smooth plane inclined at 35degrees to the horizontal. The particle is kept in equilibrium by a horizontal force, of magnitude 8N, acting in the vertical plane containing the greatest slope of the inclined plane through the particle. Calculate, in Nm to one d.p.

    a) The weight of the particle
    b) The magnitude of the force exerted by the plane on the particle.

    I need help
     
    Guest, Nov 17, 2005
    #1
  2. pau

    paul.d Well-Known Member

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    horizontally 8 = Rcos55 where R is the normal reaction of the plane on the particle
    vertically the weight of the particle mg = R cos35 where g is accn due to gravity

    so R = 8/cos55 = 13.9478 N = 13.9 N (1 dp)

    and so the weight mg = 13.9478 x cos35 = 11.4252 N = 11.4 N (1 dp)
     
    paul.d, Nov 17, 2005
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  3. Euroman

    Euroman Well-Known Member

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    RE: Paul.d

    Just had a look at your website, impressive!

    (Y) (pint) (pint) (pint) (pint) (pint) (pint) (puke)
     
    Euroman, Nov 18, 2005
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  4. pau

    paul.d Well-Known Member

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    RE: Paul.d

    not that good but thanks anyway!
     
    paul.d, Nov 18, 2005
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  5. Gue

    Guest Guest

    RE: Paul.d

    You don't happen to drive around Newcastle in a Merc with the number plate P4UL D do you?
     
    Guest, Nov 18, 2005
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