What is the mass of an object with 15,000 J of kinetic energy moving at 20 m/s?

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What is the mass of an object with 15,000 J of kinetic energy moving at 20 m/s?

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bonexptip 5 years 2021-08-02T03:37:13+00:00 1 Answers 18 views 0

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  1. Orla
    0
    2021-08-02T03:38:37+00:00
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    Answer:

    kE=1/2mv^2

    Explanation:

    here

    KE= 15000j

    velocity =20m/s

    mass=?

    now

    mass=

    15000×2= (m)20^2

    30000=m ×400

    30000÷400=m

    Mass (m)= 75

    therefore mass is 75kilogram

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