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19 October, 21:53

Erica is competing in the shot put event at a track meet. She hurls a shot with a mass of 4 kilograms at a speed of 9 meters/second. The shot's kinetic energy is joules.

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  1. 19 October, 22:09
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    We have: K. E. = mv² / 2

    here, m = 4 Kg

    v = 9 m/s

    Substitute their values into the expression:

    K. E. = (4) (9) ² / 2

    K. E. = (4) (81) / 2

    K. E. = 324 / 2

    K. E. = 162 Joules

    In short, Your Answer would be 162 J
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