- #1
teddyayalew
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Homework Statement
A fisherman is sailing up-stream; when passing under a bridge, he drops a boat-hook in the water. After half an hour he discovers this, turns back, and overtakes the boat-hook 5km below the bridge. What is the speed of the current if the fisherman rows at the same speed up and down the river?
Homework Equations
x=vt
The Attempt at a Solution
I have drawn the diagram to visualize what is going on
http://i40.tinypic.com/2qvtdop.jpg
and defined certain equations
http://i42.tinypic.com/34ir8fq.jpg
I understand that the hook traveled 5km downward along along the stream after
30min +xmins but I am having trouble figure out how to solve for x so that I may solve for the velocity of the stream