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(h2r o/a3opmbo.kd61iegs 1 s *jv+g +kiim2zp)0 fo oseven sprockets at the rear wheel and three at the pedal cranks. In which gear is it harder to pedal, a small rear sprocket or a large rear sprocket? Why? In which gear is it harder to pedal, a small front sprocket or a large front sprocket? Whypf+ikvi0o*zg)j+ 2 om ?

参考答案:



本题详细解析: 暂无

微信扫一扫，阅读更方便