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Math Help - moving on circumference of circle

  1. #1
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    moving on circumference of circle

    Circle centred at (-8,0) and I want to move anti clockwise with a constant speed of u=1m/s. After 0.1s seconds what will my coordinates be? I think you have to use parametric equations. Thanks
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  2. #2
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    I think you have to decide on the radius first. Else, there will not be a unique answer as you can have the same linear speed for different angular velocities at different distances from the centre.
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  3. #3
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    Quote Originally Posted by mathsquest View Post
    I think you have to decide on the radius first. Else, there will not be a unique answer as you can have the same linear speed for different angular velocities at different distances from the centre.
    Not only the radius, but also the starting point.

    CB
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  5. #5
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    The starting point is (0,0) so the radius is 8.
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