GATE Mechanical Engineering (ME) 2015 Shift 1 Solved Paper

Air (ρ =1.2 kg/m³ and kinematic viscosity, ν = 2 × 10^-5 m²/s) with a velocity of 2 m/s flows over the top surface of a flat plate of length 2.5 m. If the average value of friction coefficient is ${\mathit{C}}_{\mathit{f}}=\frac{1.328}{\sqrt{\mathit{R}}{\mathit{e}}_{\mathit{x}}}$ , the total drag force (in N) per unit width of the plate is ________. Correct upto three decimal places.