An object is released at one bank into a river flowing with speed 5km/h towards east. Air is blowing with speed 5km/h towards north. If width of river is 200m, then minimum time taken by floating object to reach the other bank is?
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Answer:
2.4 Minutes
Explanation:
An object is released at one bank into a river flowing with speed 5km/h towards east. Air is blowing with speed 5km/h towards north. If width of river is 200m, then minimum time taken by floating object to reach the other bank is?
Air is blowing with speed 5km/h towards north
Width of River = 200 m = 200/1000 = 0.2 km
Time taken to reach other Bank = 0.2/5 = 0.04 hr = 2.4 Minutes
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