1. A two-dimensional object is placed in a 4-ft-wide water tunnel as shown. The upstream velocity, v 1 , is uniform across the cross section. For the downstream velocity profile as shown, find the...

1. A two-dimensional object is placed in a 4-ft-wide water tunnel as shown. The upstream velocity, v₁, is uniform across the cross section. For the downstream velocity profile as shown, find the value of v₂.

2. Oil (sp. gr.
 0.8) flows smoothly through the circular reducing section shown at 3 ft³/s. If the entering and leaving velocity profiles are uniform, estimate the force which must be applied to the reducer to hold it in place.