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Your pet hamster sits on a record player whose angular speed is constant. If he moves to a point twice as far from the center, then his linear speed

doubles

halves

remains the same

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  • skyluke89


    Answer:

    doubles

    Explanation:

    The relationship between angular speed and linear speed in case of a circular motion is the following:

    v=\omega r

    where

    v is the linear speed

    \omega is the angular speed

    r is the distance from the centre of the circular path

    In this proble, the pet hamster moves to a point twice as far from the center; this means that its distance from the centre, r', is doubled:

    r'=2r

    While the angular speed \omega remains the same. Therefore, the new linear speed is

    v'=\omega r' = \omega (2r)=2 \omega r=2v

    So, the correct answer is

    the linear speed doubles