A smooth two-dimensional flat plate is exposed to a wind velocity of 70 km per hour. If the laminar boundary layer exists up to a value of Rex equal to 3 × 105 and kinematics viscosity of air = 1.49 × 10-5 m2/sec, what would be the maximum distance up to which laminar boundary persists?
1
0.063 m
2
0.115 m
3
0.229 m
4
3.78 m