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9 January, 05:45

A basketball player pushes down with a force of 34 N on a basketball that is inflated

to a gauge pressure of 9 x 104 Pa. What is the diameter of contact between the ball!

and the floor?

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Answers (1)
  1. 9 January, 06:46
    0
    2.2 cm

    Explanation:

    Pressure = force / area

    P = F / A

    A = F / P

    A = 34 N / (9*10⁴ Pa)

    A = 0.000378 m²

    Area of a circle is:

    A = πr²

    0.000378 m² = πr²

    r = 0.011 m

    Diameter is double the radius:

    d = 2r

    d = 0.022 m

    d = 2.2 cm
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