題組內容

3. Water flows steadily through the variable area horizontal pipe shown in Fig. The centerline velocity is given by \( \vec{v}=10(1+x)\hat{i} \) ft/s, where \( x \) is in ft. Viscous effects are neglected.

(2) If the pressure at section (1) is 50 psi, determine the pressure at (2) by integration of the pressure gradient and application of the Bernoulli equation. (20％)