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usman asked in Science & MathematicsPhysics · 8 months ago

a cricket ball has mass 150g and circumference of 22cm.what is its density?

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  • oubaas
    Lv 7
    8 months ago

    Volume V = PI/6*(22/PI)^3 = 22^3/(6*3.1416^2) = 179.81 cm^3

    density ρ = m/V = 150/179.81 = 0.8342 g/cm^3

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  • Como
    Lv 7
    8 months ago

    C = π d

    d = 22 / π = 22 / 22/7 = 7 cm

    r = 3•5 cm

    V = 4/3 π r³

    V = 4/3 x π x 3•5 x 3•5 x 3•5 = 179•6 cm³

    Density = 150 / 179•6 = 0•835 g/cm³

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