Question

A 15 cm cube of aluminum is immersed in a beaker of water. Find the magnitude of the buoyant force acting on the cube.

Answer 1

Question

A 15 cm cube of aluminum is immersed in a beaker of water. Find the magnitude of the buoyant force acting on the cube.

Answer

$$a = 15 \text{ cm} = 0.15 \text{ m}; \rho_{\text{water}} = 1000 \frac{\text{kg}}{\text{m}^3}; g = 9.8 \frac{\text{m}}{\text{s}^2}.$$ $$F_b = \rho_{\text{water}} g V = \rho_{\text{water}} g a^3 = 33.075 \text{ N}$$

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