A free stream of U = 50 m/s is blowing on a 0.6-m-diameter cylinder, as shown in the figure. A simple approximation of the flow behind it indicates that the velocity was reduced to 30 m/s for a strip of 0.6 m (e.g., the same as the cylinder’s diameter). Suppose we define a force coefficient as where F is the force per unit

width on the cylinder; then calculate the value of CF.