AP Physics 1
8.4 Fluids and Conservation Laws
An air mattress pump blows air above a beach ball at \(8\,\text{m/s}\). The air below the beach ball is moving at \(\approx 0\,\text{m/s}\). Assuming the beach ball diameter is \(0.1\,\text{m}\), meaning the areas for the top & bottom are each \(\approx 0.03\,\text{m}^2\), and the density of air is \(1\,\text{kg/m}^3\), what is the lift force on the beach ball?
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