[填空题]
A helicopter rotor blade s,x tzws x:oxlmr48 i7w1po51gh5 b,yx eq: s6can be considered a long thin rod, as shown in Fig. 8 ccmuvr0a*js:3*tv ,gse yy)x.l w0v,–4yls,),va0 w* r0se*cv: m3vg. xjc uty6. (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? $m \cdot N$
Post time 2025-2-18 20:00:22
