A boy at a football field practice kicked a 0.500-kg ball with a force of 100N. How fast will the ball move after reaching a distance of 7m?

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A boy at a football field practice kicked a 0.500-kg ball with a force of 100N. How fast will the ball move after reaching a distance of 7m?​

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Thu Thảo 4 years 2021-07-12T10:07:46+00:00 1 Answers 12 views 0

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  1. Verity
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    2021-07-12T10:08:53+00:00
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    Answer:

    v(7) = 52.915 m/s

    Explanation:

    First, find the value for acceleration.

    F = ma

    100 = .5 * a

    a = 200 m/s²

    Next find the velocity at x = 7 using kinematic equations.

    v² = v₀² + 2a(Δx)

    v² = (0)² + 2(200)(7)

    v = \sqrt{2800}

    v = 52.915 m/s

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