Question 1058402
Hey Guys I'm currently stuck with this problem. I was able to solve (a) already but (b) is giving me a hard time.

A man wishes to row the shortest possible distance from north to south across a river which is flowing at 3 km/hr from the east. He can row at 4 km/hr.

(a) In which direction should he steer? 
At an angle (in degrees) of 48.59025877 east of south.

(b) Suppose that when the man is in the middle of the river, a wind of 5 km/hr from the southwest starts.
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The wind is not the same as the current.
You have to have specs on the effects of the wind.  A 5 knot wind will not move a boat at 5 knots.