1.

Acar,37. A river 4.0 miles wide is flowing at the rate of2 miles/h. If minimum path is taken, find timetaken by a boat to cross the river with a speedv = 4 miles/h (in still water) is approximatelyacceleratit coversthe car!rest afteul.

Answer»

I don't know this answer sorry

width of the river d=4 miles

speed of water v=2 miles/h

ER. RAVI KUMAR ROY

minimum time only taken to cross the river when the speed of boat is parallel to the resultant speed of v and u(when u = speed of boat= 4miles/h)now ,the resultant speed w = √(v)2+(u)2 d = w t minimum time t = 4/2√5 = 2√5 h



Discussion

No Comment Found

Related InterviewSolutions