Answers

2016-03-01T14:25:56+05:30
Apply Bernoulli's Principle to the top (1) and bottom (2) of the plate. These two values must be equal.p1 + dV12/2 + dgy1 = p2 + dV22/2 + dgy2(1)Simplify since h(top) = h(under) for all practical purposes.p1 + dV12/2  = p2 + dgy2(2)Since v(under) = 0 and v(top) = v,p2 - p1 = dV2/2(3)Force = pressure * area.F = A * dV2/2 = Weight(4)Plugging in:Weight = mg = (0.5)(9.8) = 4.9 N (5)1/2 (1.2)v2(80 * 10-4) = 4.9 (6)v = 32.0 m/s.(5)
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