A man can swim with a speed of 4 km h –1 in still water. How long does he take to cross a river 1 km wide if the river flows steadily at 3 km h –1 and he makes his strokes normal to the river current ? How far down the river does he go when he reaches the other bank ?
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION
h, 
km
Sol. (I) 
Displacement along the river flow = υ r t = 
km
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