The mystery fluid's density by dividing the mass of displaced mystery fluid by the volume of displaced mystery fluid is 1.4 Kg/L
What is buoyant force?
According to Archimedes’ Principle, the buoyancy force Fb of a body is equal to the weight of displaced fluid wf.
This is written in equation form as
Fb = wf = pVg
where p is the density of the fluid, V is the volume of the submerged object and g is the magnitude of the acceleration due to gravity.
The volume V can be rewritten in terms of cross-sectional area A and height h as
V =Ah
for objects with a constant cross-sectional area. By substitution we then have
Fb = p (Ah)g .
Thus, if Fb is compared to h for a known A the density of a fluid may be determined
To know more about Archimedes Principle
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