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24 October, 12:26

What is the speed of a 0.145kg baseball if it's kinetic energy is 109 j

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Answers (1)
  1. 24 October, 13:53
    0
    The relationship for Kinetic Energy

    K

    is:

    K

    =

    1

    2

    m

    v

    2

    so:

    109

    =

    1

    2

    (

    0.145

    )

    v

    2

    so:

    v

    =



    2



    109

    0.145

    =

    38.7



    39

    m

    s
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