TS EAMCET · Physics · Motion In Two Dimensions
A man can swim with a speed of \(4 \mathrm{kmh}^{-1}\) in still water. How long does he take to cross a river \(1 \mathrm{~km}\) wide, if the river flows steadily \(3 \mathrm{kmh}^{-1}\) and he makes his strokes normal to the river current?
- A 30 min
- B 25 min
- C 20 min
- D 15 min
Answer & Solution
Correct Answer
(D) 15 min
Step-by-step Solution
Detailed explanation
As the man swims across the river making normal strokes. So, the time taken to cross the river is independent of the river flow.…
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