本题目来源于试卷: Physics Unit3: Kiematics Motion in Two Dimension & Vectors，类别为 通用国际物理
[单选题]
On a calm day (no wind), you can runb+sh-*d8 ei qwzd,u90d zv:k mci 4nv-/u7csz a 1500-maf6iibl p:1oq 2+zdb 3z;s+js race at a velocity of 4.0 m/s. If you ran the same race on a day when you had a constant headwind which slows y:;zdza6bsi+2 f+ 1qi3 pj lobsour speed by 2.0 m/s, the time it would take you to finish would be
A. 250 s.
B. 750 s.
C. 1125 s.
D. 9000 s.
参考答案: B
本题详细解析:
暂无
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