A) \[\left( +0.1\,km,\,\frac{\sqrt{3}}{2}km \right)\]
B) \[\left( -0.1\,km,\,\frac{\sqrt{3}}{2}km \right)\]
C) \[\left( -0.2\,km,\,\frac{\sqrt{3}}{2}km \right)\]
D) \[\left( 0.5\,km,\,\frac{\sqrt{3}}{2}km \right)\]
Correct Answer: D
Solution :
[d] Y-coordinate is width of the river \[y=\frac{\sqrt{3}}{2}km\] \[t=\frac{width}{5\times \cos 30{}^\circ }=\frac{1}{5}hr.\] \[X=(5\cos 60{}^\circ )\times t=0.5km\]You need to login to perform this action.
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