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10 Jun 2018
A river flows toward the south at 0.9 m/s. A girl, who can swim at 1.6 m/s in still water, is crossing the river from the west bank. In what direction must she swim if she wants to travel straight across the river? If the rive is 1.0 m wide, how long will she take to cross the river?
A river flows toward the south at 0.9 m/s. A girl, who can swim at 1.6 m/s in still water, is crossing the river from the west bank. In what direction must she swim if she wants to travel straight across the river? If the rive is 1.0 m wide, how long will she take to cross the river?
2 Jun 2021
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