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11-01-2024
Physics

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A pressure-pump has a horizontal tube of cross-sectional area 10 cm2 for the outflow of water at a speed of 20 m/s. The force exerted on the vertical wall just in front of the tube which stops water horizontally flowing out of the tube, is:
(A)300 N
(B)500 N
(C)250 N
(D)400 N

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