Fluid MechanicsHard
Question
One end of a long iron chain of linear mass density λ is fixed to a sphere of mass m and specific density 1/3 while the other end is free as shown in the figure. The sphere along with the chain is immersed in a deep lake. If specific density of iron is 7, the height h above the bed of the lake at which the sphere will float in equilibrium is (Assume that the part of the chain lying on the bottom of the lake exerts negligible force on the upper part of the chain.) :
Options
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D.
Solution
Weight of sphere + chain = (m + λh)g
Buoyant force = (3m +
) g
for equilibrium, weight = Buoyant force or , m + λh = 3m +
or h = 
Buoyant force = (3m +
) g for equilibrium, weight = Buoyant force or , m + λh = 3m +
or h = Create a free account to view solution
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