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19 August, 03:35

A 0.15 kg baseball has a kinetic energy of 18 J. What is its speed? (Round you answer to one decimal place)

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  1. 19 August, 03:36
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    Answer: The speed is 15.5 m/s

    Explanation:

    The kinetic energy can be written as:

    K = (1/2) * m*v^2

    where m is the mass and v is the speed.

    Then we have that:

    18 j = (1/2) * 0.15kg*v^2

    Now we solve this for v.

    √ (18*2/0.15) = v

    15.5 m/s = v
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