circular motion

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  • circular motion
    • condition
      • speed does not change, velocity is constantly changing
        • force acting towards the center - centripital
          • force is acting constantly at 90 degrees to the objects V
        • velocity is always at a tangent
    • r= distance from the centre as is constant
    • acceleration = v^2 / r
      • F = MV^2 / r
        • could be tension or weight or friction ect
        • time period = 1/f
          • V = 2 pi f r
            • angular v = 2 pi f
        • at bottom of cycle + mg
    • banked plane
      • vertical component = mg and horizontal component = mv^2/r
        • find resultant sin or  cos
      • can be calculated by weight or centripetal force
        • can equate
    • loop the loop
      • support force = centripetal force
        • the support force at the bottom also needs to hold the cart up
          • +mg
        • less support force nedded at the top as weight is acting down
          • - mg

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