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Best_Mathematician

  • 2 years ago

what is the vector function that models the behavior

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  1. Best_Mathematician
    • 2 years ago
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    last two questions...cant understand

  2. phi
    • 2 years ago
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    Didn't you already do this ? you have a sin t that you want to rotate faster to make it rotate twice as fast, use sin(2t) (and cos(2t) ) and keep everything else the same.

  3. Best_Mathematician
    • 2 years ago
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    ya but last 2

  4. phi
    • 2 years ago
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    as I remember, in the first part, the hoop has a diameter of 2, and a radius of 1 for the next part, I think you want a hoop with 1/2 the diameter, so its mark hits the floor twice as often. that means its radius will be 1/2 and its diameter 1

  5. Best_Mathematician
    • 2 years ago
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    ok so whats the answer for d?

  6. phi
    • 2 years ago
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    r=(t- 0.5*sin(2t) ) i + (0.5 - 0.5 cos(2 t)) j

  7. Best_Mathematician
    • 2 years ago
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    is that d???

  8. phi
    • 2 years ago
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    I think so

  9. Best_Mathematician
    • 2 years ago
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    ya i gatcyu...so how should i graph that ???

  10. phi
    • 2 years ago
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    I don't know what graphing tools you have.

  11. Best_Mathematician
    • 2 years ago
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    wolframalpha

  12. Best_Mathematician
    • 2 years ago
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    i know upto here but how to plot themm

  13. Best_Mathematician
    • 2 years ago
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    http://www.wolframalpha.com/input/?i=parametric+plot

  14. Best_Mathematician
    • 2 years ago
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    thx

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spraguer (Moderator)
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