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Two Identical Pieces, One of Ice (Density = 900kg per Meter Cube) and Other Wood (Density = 300kg per Meter Cube) Float on Water. Which of the Two Will Have More Volume Submerged Inside - Physics

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Question

Two identical pieces, one of ice (density = 900kg per meter cube) and other wood (density = 300kg per meter cube) float on water.

  1. Which of the two will have more volume submerged inside water
  2. Which of two will experience more upthrust due to water.
Short Note

Solution

  1. Ice will be more submerged inside water. Ice has a greater density than wood, although the volume of both is the same. So to support a greater amount of weight, ice needs to displace more water, and to displace more water, it has to be submerged more as compared to wood.
  2. As ice displaces more water, it will experience more upthrust.
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Chapter 5: Upthrust in Fluids, Archimedes’ Principle and Floatation - Exercise 5 (C) [Page 123]

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Selina Concise Physics [English] Class 9 ICSE
Chapter 5 Upthrust in Fluids, Archimedes’ Principle and Floatation
Exercise 5 (C) | Q 15 | Page 123
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