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lostindividual Group Title

A 85.3 kg ice skater is moving at 4.38 m/s when she grabs the loose end of a rope, the op- posite end of which is tied to a pole. She then moves in a circle of radius 0.564 m around the pole. Find the force exerted by the rope on her arms. The acceleration of gravity is 9.8 m/s2 . Answer in units of kN

  • 2 years ago
  • 2 years ago

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  1. imron07 Group Title
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    |dw:1349481863357:dw| Can you figure what the answer now?

    • 2 years ago
  2. lostindividual Group Title
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    maybe if i see the formula

    • 2 years ago
  3. imron07 Group Title
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    Force on skater's arm is centripetal force that makes her move in circle with speed 4.38 m/s.

    • 2 years ago
  4. imron07 Group Title
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    \[F=\frac{mv^2}{r}\]

    • 2 years ago
  5. lostindividual Group Title
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    i tried that the solution i got was 2901.470426 but the computer said it was incorrect

    • 2 years ago
  6. imron07 Group Title
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    Do you put your ans in kN? (2.9 kN)

    • 2 years ago
  7. lostindividual Group Title
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    i didnt thank u

    • 2 years ago
  8. Decart Group Title
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    try g=v^2/r the mass shouuld cancel

    • 2 years ago
  9. lostindividual Group Title
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    i got it thanks

    • 2 years ago
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