Problem6When a viscous fluid flows parallel to a horizontal plate, it leads to the development of a thinboundary layer on the plate surface. The velocity within the boundary layer varies with thevertical direction as u(y) = US where 8(x) = 3.5 VX/Uis the boundary layer thicknessvx8(x)that increases with the horizontal position. Outside of the boundary layer, the flow is uniformand equal to the free stream velocity U...Show that for two fluids of different viscosities (₁, ₂) and densities (P₁, P2) and flowing at thesame free stream velocity, the ratio of the drag force they generate on the plate is proportionalto the square root of the ratio of the viscosities and densities:FD2FD1=H₂P2M₁P₁

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