A sliding fit cylindrical body of mass of `1 kg` drops vertically down at a constant velocity of `5cms^(-1)`. Find the viscosity of the oil.
Text Solution
Verified by Experts
As the body moves with constant velocity `mg=F_(v)implies1g=etaA(dv)/(dy)` `implies1g=eta(2pi)(dv)/(dy)` `implies 1g=eta(2pixx7.5xx10^(-2))((0.05-0)/(0.05xx10^(-2)))` After solving we get `eta=1.4Ns//m^(2)`
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CENGAGE PHYSICS-PROPERTIES OF SOLIDS AND FLUIDS-INTEGER_TYPE
