A closed cylinder of length ' λ ' containing a liquid of variable density ρ (x) = ρ 0 (1 + αx) is rotating about a vertical axis with an angular speed ꞷ. Find the net force exerted by the liquid on the axis of rotation. (Take the cylinder to be massless and A = cross sectional area of cylinder, ignore the gravity) –
A
ρ 0 Aꞷ 2 λ 2 
B
ρ 0 Aꞷ 2 λ 2 
C
ρ 0 Aꞷ 2 λ 2 
D
ρ 0 Aꞷ 2 λ 2 
Text Solution
Verified by ExpertsThe correct answer is:
A
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