A river is flowing towards with a velocity of \( 5 \mathrm{~ms}^{-1} \). The boat velocity is \(...

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A river is flowing towards with a velocity of \( 5 \mathrm{~ms}^{-1} \). The boat velocity is \( 10 \mathrm{~m} \mathrm{~s}^{-1} \). The boat crosses the river by shortest path. Hence,
(1) The direction of boats velocity is \( 30^{\circ} \) west of north.
(2) The direction of boats velocity is north-west.
(3) Resultant velocity is \( 5 \sqrt{3} \mathrm{~m} \mathrm{~s}^{-1} \).
(4) Resultant velocity of boat is \( 5 \sqrt{2} \mathrm{~m} \mathrm{~s}^{-1} \).
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