How fast must the air flow over the upper surface of wing
An airplane with a mass of 2.6 106 kg. has the air flow past the lower surface of the wings at 100 m/s. If the wings have a surface area of 1200 m2, how fast must the air flow over the upper surface of the wing if the plane is to stay in the air?
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You are swinging your younger sister in a horizontal circle of radius 0.81 m. Her mass is 26 kg and you arrange it so she makes one revolution every 1.5 s.
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A 747 airliner reaches its takeoff speed of 170 in 35.3. What is the magnitude of its average acceleration?
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