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AP Physics 1
8.2 Pressure
IntermediateGQMathematical15.3k
A student on a narrow piston balances an elephant on a \(2.0\,\text{m}\) wide piston.
A student on a narrow piston balances an elephant on a \(2.0\,\text{m}\) wide piston.
The \(70\,\text{kg}\) student in the figure balances a \(1200\,\text{kg}\) elephant on a hydraulic lift. Assume that it is filled with oil, which is incompressible and has a density \(\rho = 900\,\text{kg/m}^3\). What is the diameter of the piston the student is standing on? Assume each piston has a cylindrical shape, i.e., a circular cross-sectional area. Note: The two pistons are at the same height. Also, the diameter of the wider piston is given in the figure to be \(2.0\,\text{m}\).

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