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Question
An object weighs 36g in the air and has a volume of 8.0 cm3. What will be it's apparent weight when immersed fully in water? Density of water = 1kg/ m3.
An object weighs 36g in the air and has a volume of 8.0 cm3. What will be it's apparent weight when immersed fully in water? Density of water = 1kg/ m3.
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Solution
Solution:
When immersed in water, the object is buoyed up by the mass of the water it displaces, which of
course is the mass of 8 cm^3 of water. Taking the density of water as unity, the upward (buoyancy) force is just
8 g.
The apparent weight will be (36 g) – (8 g) = 28 g.
Hope you understand.
When immersed in water, the object is buoyed up by the mass of the water it displaces, which of
course is the mass of 8 cm^3 of water. Taking the density of water as unity, the upward (buoyancy) force is just
8 g.
The apparent weight will be (36 g) – (8 g) = 28 g.
Hope you understand.
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