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Emergeny on fluid question! much love for any help

A shaft 70 mm in diameter is being pushed at a speed of 400 mm/s through a bearing sleeve
70.2 mm in diameter and 250 mm long. The clearance, assumed uniform, is filled with oil
with kinematic viscosity ν = 0.005 m2
/s and density ρ = 900 kg/m3
. Find the force exerted by
the oil on the shaft. (ans.: 990 N)

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