A laminar boundary layer develops along a flat plate and its thickness at a particular point is δ = 0.1 m. If we approximate the boundary-layer velocity distribution by
![2457_e3c9ecfa-8c2b-4732-acef-b80ff7696cc8.png](https://secure.tutorsglobe.com/CMSImages/2457_e3c9ecfa-8c2b-4732-acef-b80ff7696cc8.png)
then calculate the local shear τ and friction coefficient Cf. Assume that U∞ = 30 m/s, ρ = 1.2 kg/m3, and μ = 1.8 × 10-5 N s/m2.