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Math Help - Finding angular displacement.

  1. #1
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    Finding angular displacement.

    Hello,
    Need help on how to set this up and the answer, so I can study it to understand it.

    A shaft whose diameter is 10 cm rotates with an angular speed of 1.00 rad / second. Calculate the angular displacement IN RADIANS, if the shaft rotates for 3.75 seconds??

    PLEASE HELP STUCK ON THIS>
    I know you convert the diam which comes to 0.05 m for RADIUS
    But don't know which formula to use tho??

    THANKS for your help
    Joanne
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    Quote Originally Posted by bradycat View Post
    Hello,
    Need help on how to set this up and the answer, so I can study it to understand it.

    A shaft whose diameter is 10 cm rotates with an angular speed of 1.00 rad / second. Calculate the angular displacement IN RADIANS, if the shaft rotates for 3.75 seconds??

    PLEASE HELP STUCK ON THIS>
    I know you convert the diam which comes to 0.05 m for RADIUS
    But don't know which formula to use tho??

    THANKS for your help
    Joanne
    since the shaft has no angular acceleration ...

    \Delta \theta = \omega t<br />

    the radius length is inconsequential in this problem.
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