- #1

teddyayalew

- 36

- 0

## 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