Bernoulli and Continuity Question!! A river (100 m wide) flows through its rectangular channel at a depth of 2.560 m at a velocity of 2.050 m/s. What is the velocity of the discharge if the channel is narrowed to 90 m? Continuity equation: Q1 = 100m x 2.560 m x 2.050 m/s Q2 = 90 m x H2 x V2 Bernoulli equation: V^2/2g + P/pg + z = constant I can't seem to set up the equations properly in order to find intercept. I'm sure that P1 (ie. pressure1) is zero, but P2 isn't. I actually tried solving the question with P2=0 but it's wrong. A little help?