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A river is flowing due east with a speed...

A river is flowing due east with a speed ` 3 m//s` (Fig. 2 (EP) .31 ).
. (a) If swimmer starts swimming due borth, what will be his resultant velocity (magnitude and direction) ? (b) If he wants to start from point (A) on South bank and reach opposite point (B) on North bank,
(i) Which direction should he swim? (ii) What will be his resultant speed ? (c ) From two differenrent casses as mentioned in (a) and 9b) above, in which casse will he reach opposite bank in shorter time ?

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