gc textbook chapter 8 Rotational Motion (id: e92395b2a)

admin

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 w8o9szrlb2n 2can be considered a long thin rod, as.wdk2 lm)p6 cu shown in Fig. 8–4.ud)k 6l 2mpcw6.
(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:

微信扫一扫，阅读更方便