Math Problem Statement

A body of volume 100 cm3 weighs 5 kgf in air. It is completely immersed in a liquid of density 1.8 x 103 kg m-3 . Find:

(i) The upthrust due to liquid and (ii) The weight of the body in liquid.

Solution

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Math Problem Analysis

Mathematical Concepts

Buoyancy
Forces in Fluids
Archimedes' Principle

Formulas

Upthrust (F_b) = Volume of body (V) × Density of liquid (ρ) × g
Weight in liquid (W_liquid) = Weight in air (W_air) - Upthrust (F_b)

Theorems

Archimedes' Principle

Suitable Grade Level

Grades 10-12