A 0.450 kg soccer ball has a kinetic energy of 119 J. Calculate the velocity of the soccer ball (rounding your answer to the integer).

Question

A 0.450 kg soccer ball has a kinetic energy of 119 J.
Calculate the velocity of the soccer ball (rounding your answer to the integer).

Velocity ________ m/s

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Thanh Thu 1 year 2021-08-03T10:01:17+00:00 1 Answers 109 views 0

Answers ( )

    0
    2021-08-03T10:03:09+00:00

    Answer:

    V is approximately = 23m/s

    Explanation:

    Kinetic energy = ½ mv²

    Where m= mass = 0.450kg

    V= velocity =?

    K. E = 119J

    Therefore

    K. E = ½ mv²

    Input values given

    119= ½ × 0.450 × v²

    Multiply both sides by 2

    119 ×2  = 2 × 1/2 × 0.450 × v²

    238= 0.450v²

    Divide both sides by 0.450

    238/0.450 = 0.450v²/0.450

    v² = 528.89

    Square root both sides

    Sq rt v² = sq rt 528.89

    V = 22.998m/s

    V is approximately = 23m/s

    I hope this was helpful, please rate as brainliest

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