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gc textbook chapter 8 Rotational Motion (id: e92395b2a)

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Post time 2025-2-18 20:00:22 | Show all posts |Read mode
本题目来源于试卷: gc textbook chapter 8 Rotational Motion,类别为 unclassified

[填空题]
A helicopter rotor blade can b5 (4pfh )ob,spk s0lkre considered a long thin rod, as shown in pou:wggam 6t,a46+ao4vl r*n.d g5 doFig. 8–46d o 4w+gtma,go.l5dag o6:p4ua r*v6n.
(a) If each of the three rotor helicopter blades is 3.75 m long and has a mass of 160 kg, calculate the moment of inertia of the three rotor blades about the axis of rotation.    $kg \cdot m^2$
(b) How much torque must the motor apply to bring the blades up to a speed of 5 $rev/s$ in 8.0 s?    $m \cdot N$





参考答案:
空格1: 2250±2%空格2: 8800±2%


本题详细解析:
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