Physics Unit26: Special Theory of Relativity (id: 5779cc394)

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本题目来源于试卷: Physics Unit26: Special Theory of Relativity，类别为 Generic Physics

[单选题]
A boat can travel 4.0 m/s in still water. With what speed, s0*aa ntqbti 70lyibn-:r 4( qrelative to th7a1l wthq7b7he shore, does it move in a river that7lbhaq 7twh71 is flowing at 1.0 m/s if the boat is heading straight across the river?

A. 3.0 m/s
B. 4.1 m/s
C. 4.8 m/s
D. 5.0 m/s


参考答案:  B


本题详细解析: 暂无