A point on the rim of a 0.30-m-radius rotating

  1. A point on the rim of a 0.30-m-radius rotating wheel has a tangential speed of 4.0 m/s. What is the tangential speed of a point 0.20 m from the center of the same wheel?

    a. 1.0 m/s
    b. 1.3 m/s
    c. 2.7 m/s
    d. 8.0 m/s

    i have been trying to do this for hours now.somebody please help
     
  2. jcsd
  3. CompuChip

    CompuChip 4,298
    Science Advisor
    Homework Helper

    Chegg
    What formula do you know that relates tangential speed to radius?
     
  4. can anyone help me?
     
  5. CompuChip

    CompuChip 4,298
    Science Advisor
    Homework Helper

    Please read this first. Then, you might want to answer that question. The solution immediately follows (i.e. I cannot make it any easier for you without giving the answer).
     
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