The U-tube manometer shown in Figure P1.25 rotates about axis \(A-A\) at a speed of \(40 \mathrm{rad} / \mathrm{s}\). At the instant shown, the column of liquid moves with a speed of \(20 \mathrm{~m} / \mathrm{s}\) relative to the manometer. Calculate the total kinetic energy of the column of liquid in the manometer.

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20 cm FIGURE P1.25 + 40 rad/s v = 20 m/s Specific gravity 1,4 Area 3 x 104m 60 cm 100 cm