An object has a velocity of 8 m/s and a kinetic energy of 480 J. What is the mass of the object? (Formula: ) KE=1/2mv squared 7.5 kg

Question

An object has a velocity of 8 m/s and a kinetic energy of 480 J. What is the mass of the object? (Formula: ) KE=1/2mv squared
7.5 kg
15 kg
60 kg
120 kg

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Đan Thu 3 years 2021-07-15T12:35:26+00:00 1 Answers 102 views 0

Answers ( )

  1. dangkhoa
    0
    2021-07-15T12:36:27+00:00
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    Answer:15kg

    Explanation:

    kinetic energy=ke=480J

    Velocity=v=8m/s

    Mass=m

    Ke=0.5 x m x v x v

    480=0.5 x m x 8 x 8

    480=32m

    Divide both sides by 32

    480/32=32m/32

    15=m

    Mass=15kg

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