Questions
A man can row a boat at a velocity of 10 m/s in still water. Speed of water in the river is 5 m/s. If the man wishes to cross the river in the minimum possible time, the drift produced is [width of river = 1 km]
detailed solution
Correct option is A
If the man wishes to cross the river in the minimum possible time, then he should row the boat in a direction perpendicular to the direction of motion.∴ tmin=dVb/ω∴ Drift = BC = Vω×tmin=5×100010m=500 mTalk to our academic expert!
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