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14 February, 20:33

What kinetic energy has a 4kg shootput thrown with a velocity of 12m/s

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Answers (2)
  1. 14 February, 23:54
    0
    288J

    Step-by-step explanation:

    recall the formula for kinetic energy

    KE = (1/2) mv²

    where m is the mass ( = 4kg) and v is the velocity (=12 m/s)

    hence

    KE = (1/2) (4) (12) ² = 288J
  2. 15 February, 00:01
    0
    Answer: 288 Joules

    Step-by-step explanation:

    K. E = 1/2 * mass * square of the velocity

    K. E = 1/2 * m * v ^ 2

    From the question:

    Mass = 4kg

    Velocity = 12m/s

    Therefore:

    K. E = 1/2 * 4 * 12^ 2

    = 0.5 * 4 * 144

    = 288 Joules
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