gc textbook chapter 8 Rotational Motion (id: f1a5b03e2)

admin

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

[问答题]
A 21-speed bicycle has seven sprockets at the re 7 ji-v;)ycn9hep- gkbar wheel and three at the .ex77 qfdy5jmpedal cranks. In which gear is it harder to pedal, a small rear sprocket or a lar 7x7eydjqf.m5 ge rear sprocket? Why? In which gear is it harder to pedal, a small front sprocket or a large front sprocket? Why?

参考答案:



本题详细解析: 暂无