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Byju's Answer
Standard X
History
Administration of Conquered Territories
Help build a ...
Question
Help build a way to cross the fast flowing river with a bicycle.
A
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B
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C
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Solution
The correct option is
C
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Q.
A swimmer wishes to cross a 500 m wide river flowing at 5 km/h. His speed with respect to water is 3 km/h.
(a) If he heads in a direction making an angle θ with the flow, find the time he takes to cross the river.
(b) Find the shortest possible time to cross the river.