問題詳情

4.The 200-kg glider B is being towed by airplane A, which is flying horizontally with a constant speed of 220 km/h. The low cable has a length r = 60 m and may be assumed to form a straight line. The glider is gaining altitude and when θ reaches 15°, the angle is increasing at the constant rate θ•=5 deg/s. At the same time the tension in the tow cable is 1520 N for this position. Please calculate the aerodynamic lift L and drag D acting on the glider. (20%)

參考答案

答案:B
難度:非常簡單0.958539
統計:A(23),B(2913),C(27),D(14),E(0) #
個人:尚未作答書單:遲發性肌肉酸痛、運動恢復、乳酸

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