Question
A 125 -lb rock lies at the bottom of a pond. Its volume is $0.800 \mathrm{ft}^{3}$. How much force is needed to lift the rock?
Step 1
The buoyant force is the weight of the water displaced by the rock. It can be calculated using the formula: \[ F_{b} = V \cdot \rho \] where \( V \) is the volume of the rock and \( \rho \) is the weight density of the water. Show more…
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