Archimedes'' principle states that the buoyant force on a submerged body equals:
Choose the correct answer
Weight of the body itself
Weight of fluid displaced by the submerged part of the body
Pressure at the base of the body
Half the weight of the body
Correct Answer
B. Weight of fluid displaced by the submerged part of the body
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Buoyant force = weight of fluid displaced by the body = ρ_fluid × g × V_submerged. Acts upward through centre of buoyancy (centroid of displaced volume). Floatation condition: weight of body = buoyant force = weight of fluid displaced (body floats at level where displaced fluid = body weight).
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