gc textbook chapter 8 Rotational Motion (id: f9e3ebbfd)

admin

本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified

[填空题]
(a) For a bicycle, how is the ang mpnoxcpu561)ular speed of the 9)-ugd9wb4 :npj zwu: lm s0nerear wheel ($\omega_R$) related to that of the pedals and front sprocket ($\omega_F$) Fig. 8–52? That is, derive a formula for ($\omega_R$)/($\omega_F$) Let $N_F$ and $N_R$ be the number of teeth on the front and rear sprockets, respectively. The teeth are spaced equally on all sprockets so that the chain meshes properly.
(b) Evaluate the ratio ($\omega_R$)/($\omega_F$) when the front and rear sprockets have 52 and 13 teeth, respectively,   
(c) when they have 42 and 28 teeth.   

参考答案:
空格1: 4±2%  空格2: 1±2% 


本题详细解析:

微信扫一扫，阅读更方便