The terminal velocity of a copper ball o...

The terminal velocity of a copper ball of radius `2mm` falling through a tank of oil at `20^(@)C` is `6.5cm//s`. Find the viscosity of the oil at `20^(@)C`. Density of oil is `1.5xx10^(3)Kg//m^(3)`, density of copper is `8.9xx10^(3)Kg//m^(3)`.

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What is the terminal velocity of a copper ball of radius 2.0 mm, which falls through an oil tank? Given that density of oil = 1.5 xx 10^(3) kg m^(-3) , density of copper = 8.9 xx 10^(3) kg m^(-3) and viscosity of oil is 0.99 kg m^(-1)s^(-1) .

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SL ARORA-Mechanical Properties of fluids-Exercise

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