Calculate the kinetic energy of a 5.0kg object moving at 4.0 m/s

Question

Calculate the kinetic energy of a 5.0kg object moving at 4.0 m/s

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Ngọc Khuê 3 years 2021-07-16T05:23:58+00:00 1 Answers 16 views 0

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  1. ThanhThu
    0
    2021-07-16T05:25:19+00:00
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    Answer:

    The answer is

    40 J

    Explanation:

    The kinetic energy of an object given it’s mass and velocity can be found by using the formula

    KE = \frac{1}{2} m {v}^{2}

    where

    m is the mass

    v is the velocity

    From the question

    m = 5 kg

    v = 4 m/s

    The kinetic energy is

    KE = \frac{1}{2} \times 5 \times {4}^{2} \\ = \frac{1}{2} \times 5 \times 16 \\ = 5 \times 8

    We have the final answer as

    40 J

    Hope this helps you

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