What is the pressure difference across the width of each boat?
According to Bernoulli's theorem, we have
PA + (1/2) w vA2 = PB + (1/2) w vB2
(PA - PB) = (1/2) w vB2 - (1/2) w vA2
P = (1/2) w (vB2 - vA2)
where, w = density of fresh water = 1030 kg/m3
vB = speed of a boat B = 9 m/s
vA = speed of a boat A = 7 m/s
then, we get
P = (0.5) (1030 kg/m3) [(9 m/s)2 - (7 m/s)2]
P = (515 kg/m3) (32 m2/s2)
P = 16480 Pa
Question 4 Two boats are traveling parallel at speed 7.0 m/s in a freshwater lake. But the water between them is ac...
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