gc textbook chapter 8 Rotational Motion (id: f1a5b03e2)

[问答题]
A 21-speed bicycle has se(:n z:mbag y-06mg(n r c(tuzkven sprocketvnv.) 6aakq-.y, cctss 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 n c.qta)yv.c-v ,k6sawhich 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