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2 marksHydrostatics

CSEC Physics · May/June 2012 · Paper 2 · Question 3(d)(i)

State Archimedes' Principle.

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  1. 3(a)Determine its weight in air. [Acceleration due to gravity, g = 10 N Kg⁻¹][2 marks]
  2. 3(b)For land transport, the yacht is secured on a trailer. Each tyre on the trailer can support up to a maximum of 7000 Newtons. What is the LEAST number of tyres…[2 marks]
  3. 3(c)(i)Many forces act on the yacht yet it is in equilibrium. State TWO conditions that must be satisfied for an object to be in equilibrium.[2 marks]
  4. 3(c)(ii)State the effect that the position of the centre of gravity of an object has on its stability.[1 mark]
  5. 3(d)(ii)The yacht's hull is made of steel with density, ρ, equal 7850 kg m⁻³. Explain how the yacht is able to float in sea water of density, ρ_sea 1025 kg m⁻³.[2 marks]
  6. 3(d)(iii)Calculate the volume of sea water displaced by the yacht as it floats.[4 marks]

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