gc physics textbook chapter 3 problems (id: b69f848f8)

本题目来源于试卷: gc physics textbook chapter 3 problems，类别为 IB物理学

[填空题]
A swimmer is capable of hbd(k9wy*9 e c) my,5qrnefd*swimmingpz;jbf/ vmln z.n, y*g+x -:pr 0.45 $\mathrm{m}/\mathrm{s}$ in still water. (a) If she aims her body directly across a 75 -
m -wide river whose current is 0.40 $\mathrm{m}/\mathrm{s}$ , how far downstream (from a point opposite her starting point)
will she land?   
(b) How long will it take her to reach the other side?   

参考答案:
空格1: 67±2%  空格2: 170±2% 


本题详细解析:

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