MHT CET 2026 Physics question
A boat crosses a river from one bank A to another bank B which is opposite. The distance between them is D. The speed of water is and that of boat relative to water is . If , the time taken by the boat to cross the river directly along AB is
Answer: (C)
Solution
To go directly along AB (perpendicular to the banks), the boat must point upstream at angle to AB such that its velocity component along the bank cancels the water speed: . With , , so . The resultant speed
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