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27 February, 17:13

3. An explosion of gas from a Hawaiian volcano blows a bunch of rocks into the sky. Each has 2000J of

kinetic energy. Find the mass, to the nearest 0.001kg if its velocity is 32m/s.

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  1. 27 February, 17:36
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    Answer: 3.906kg

    Explanation:

    K. E = 2000J

    V = 32m/s

    m = ?

    K. E = 1/2MV2

    2000 = 1/2M x (32^2)

    2000 = 1/2M x 1024

    2000 = 512M

    M = 2000/512

    M = 3.906kg
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