First, find the position after each period. Use the formula d = v*t.
0.25 m/s North for 3.0 seconds.
[tex]d=0.25(\frac{m}{s})\cdot3\sec =0.75m[/tex]
When it stops for 2 seconds, the position remains constant, so we draw a horizontal line there.
0.50 m/s for 4.0 seconds.
[tex]d=0.50(\frac{m}{s})\cdot2\sec =1m[/tex]
Basically, the fish swims 0.75 meters North and 1 meter South.
