The motion of a fish swimming in a fish tank exemplifies translational motion.
How to explain
Translational motion occurs when an object moves from one point to another in a straight or curved path without any rotation.
In the case of the fish swimming, its movement from one location to another within the tank represents translational motion as it changes its position in space without altering its orientation or undergoing rotational movement.
This type of motion demonstrates the fish's ability to navigate through the water in a linear manner without any spinning or rotational changes.