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Math Help - Linear Velocity?

  1. #1
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    Linear Velocity?

    The turbine fan blade of a turbojet engine is 2.2m in diameter and rotates at 300 r/s. How fast is the tip of a blade moving? (what linear velocity)

    Can anyone figure this one out? I am having trouble with these questions.

    Thanks.
    Last edited by skeeter; December 7th 2011 at 03:12 AM.
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  2. #2
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    Re: Liner Velocity?

    Circle. 1.1 meter Radius

    Calculate the Circumference of this circle.

    Now what?
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  3. #3
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    Re: Liner Velocity?

    While circumference is PIE x D? right?

    So 6.91meters..

    So what do I do now?
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  4. #4
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    Re: Liner Velocity?

    Now you know revolutions per second and in a revolution, fan turns around the circumference once.
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  5. #5
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    Re: Liner Velocity?

    1 rps = 6.91 mps
    2 rps = 13.82 mps

    300 rps = ?? mps
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  6. #6
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    Re: Liner Velocity?

    2,073.45 mps?
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