How fast must the air flow over an upper surface

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Q. Hakeem throws an 8.00 g ball straight down from a height of 2.0 m. The ball strikes the floor at a speed of 7.40 m/s. What was the initial speed of the ball? Assume that air resistance is negligible.

Q. An airplane has a mass of 2.4e6 kg, and the air flows past the lower surface of the wings at 85 m/s. If the wings have a surface area of 1200m2, how fast must the air flow over an upper surface of the wing if the plane is to stay in the air? Consider only Bernoulli Effect.

Reference no: EM1384713

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