A boat crossing a river moves with a velocity v relative to still water. The river is flowing with a velocity v/2 with respect to the bank. The angle with respectively the slow direction with which the boat should move to minimize the drift is

30^{o}

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60^{o}

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180^{o}

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120^{o}

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Solution

The correct option is A $120^{o}$
Required angle by figure
$θ = 130^{o} + 90^{o}$
$= 120^{o}$

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A boat crossing a river moves with a velocity v relative to still water. The river is flowing with a velocity v/2 with respect to the bank. The angle with respectively the slow direction with which the boat should move to minimize the drift is

The correct option is A 120oRequired angle by figure θ=130o+90o=120o

The correct option is A $120^{o}$
Required angle by figure
$θ = 130^{o} + 90^{o}$
$= 120^{o}$