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 )o wcg1d zxl)hbv-mn0 ggk-1:n.s qq 4c+js1arear wheel and three athtgd nm94 3xhz/k oe/44j hpidn)y0+n 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 fron n3h /h4t94hng dpj4miz k)/y on0+exdt sprocket or a large front sprocket? Why?
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Post time 2025-2-18 20:00:22