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A brick weighs 26 N. Measured underwater, it weighs 11 N. What is the amount of buoyant force exerted by the water on the brick?
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5 votes
A brick weighs 26 N. Measured underwater, it weighs 11 N. What is the amount of buoyant force exerted by the water on the brick?

User YTerle
by
6.3k points

2 Answers

4 votes
Buoyant force is equal to upthrust therefore
Upthrust = weight of brick in air - weight of brick in water
Upthrust = 26 - 11
Upthrust =15N
It's S.I unit is Newton (N) because it is a force
User Jonycheung
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5.4k points
2 votes
buoyant force = weight - apparent weight = 26 - 11 = 15N
User Bryan Shalloway
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6.2k points
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