What is the kinetic energy of an object that has a mass of 50.0 kg and a velocity of 18 m/s? 450 J 900 J 8,100 J

Question

What is the kinetic energy of an object that has a mass of 50.0 kg and a velocity of 18 m/s?

450 J
900 J
8,100 J
16,000 J

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Khang Minh 2 months 2021-07-15T07:36:52+00:00 2 Answers 2 views 0

Answers ( )

    0
    2021-07-15T07:38:03+00:00

    …answer…: 8,100 J

    0
    2021-07-15T07:38:20+00:00

    Answer:

    The answer is 8,100 J

    Explanation:

    The kinetic energy of a body when 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

    mass of object = 50 kg

    velocity = 18 m/s

    It’s kinetic energy is

    KE =  \frac{1}{2}  \times 50 \times  {18}^{2}  \\  = 25 \times 324

    We have the final answer as

    8100 J

    Hope this helps you

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