Air flows into the atmosphere from a nozzle and strikes a vertical plate as shown in Fig. P5.53. A horizontal force of \(12 \mathrm{~N}\) is required to hold the plate in place. Determine the reading on the pressure gage. Assume the flow to be incompressible and frictionless.

Figure P5.53

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p = ? Area = 0.01 m Area = 0.003 m 12N