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Homework Help: Lift force

  1. Nov 4, 2006 #1
    Hi ive got a question concerning a previous question ive done. A person is holding a toy airplane which flys in the air with a constant radius.

    is the lift force the same as reaction force?

    is it equal to the vertical component of the centripetal force and weight force of the airplane?
  2. jcsd
  3. Nov 4, 2006 #2


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    Assuming the plane is flying in a horizontal circle of constant radius, the lift force is equal to the weight force plus the vertical component of the tension force in the cord. The centripetal force is the horizontal component of the tension force.
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