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Centripetal force of a rotating ride thing

  1. Jan 28, 2010 #1
    Just had a question in an exam asking me to find the centripetal force of a capsule on a ride like this:


    It gave the mass of a capsule, its velocity and radius etc. Would I have had to multiply by the number of capsules, because it did state the number.

    I didn't do this, but someone told me that that's what I should have done. Now I'm confused!
  2. jcsd
  3. Jan 28, 2010 #2


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    Why multiply when you're asked to find the force for a single capsule?
  4. Jan 28, 2010 #3
    That's what I thought, but it's strange that they gave the number of the capsules.

    Probably just to confuse us!
  5. Jan 28, 2010 #4


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    Well, it would be different if you were asked to find the sum of all the centripetal forces acting on the ride.
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