The volume of a piece of iron is 0.1 dm3. What buoyancy force will act on it when it is completely immersed in water; in kerosene?
| May 23, 2021 | education
Given: V = 0.1 dm3 = 0.0001 m3 pk = 1000 kg / m3
Рср = 800 kg / m3 Find: FА1 -?; FA2 -?
To solve this problem, we use Archimedes’ law:
FA = pgV
FA1 = pw * g * V = 1000 * 10 * 0.0001 = 1 n
Pa2 = pker * n * V = 800 * 10 * 0.0001 = 0.8 N
Answer: FA1 = 1 H; FA2 = 0.8 N
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