What is water weight?

When a 120-N roch is suspended beneath the surface of water, its apparent weight is 80 N. what volume of water?

  • Answer:

    The rock displaces an equivalent volume of water by weight as the buoyancy force lifting up on the rock. So Buoyancy Force is 120-80=40 Newtons 40Newtons/9.81m/sec^2=4.08kg of mass 1meter^3=1000liters=1000kg 4.08kg x 1m^3/1000kg = .0048 m^3

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Here, Weight of rock = 120 N Weight in water = 80 N Bouncy Force = 120 - 80 = 40 N Displaced-water Volume = Volume of ROCK. <========== A N S W E R ============>

Fazaldin A

Here, Weight of rock = 120 N Weight in water = 80 N Bouncy Force = 120 - 80 = 40 N Displaced-water Volume = Volume of ROCK. <========== A N S W E R ============>

Fazaldin A

The rock displaces an equivalent volume of water by weight as the buoyancy force lifting up on the rock. So Buoyancy Force is 120-80=40 Newtons 40Newtons/9.81m/sec^2=4.08kg of mass 1meter^3=1000liters=1000kg 4.08kg x 1m^3/1000kg = .0048 m^3

Joe Roberts

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