Water (rho = 1000 kg/m^3) flows horizontally. At one point P = 3 10^5 Pa and v = 3 m/s; at another v = 9 m/s. The pressure there is:

  1. 5.28 10^5 Pa
  2. 2.64 10^5 Pa
  3. 2.64 10^6 Pa
  4. 1.32 10^5 Pa
Answer

B) 2.64 10^5 Pa

P2 = P1 + 12rho(v1^2 - v2^2) = 3 10^5 + 500(9 - 81) = 2.64 10^5 Pa. SLO P-11-B-40 · Application

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