The topic of relative motion is first introduced. This involves defining some physics terms such as kinematics, scalars and vectors. Next, an example of relative motion in one dimension is given. The example of 2 vehicles traveling down a road with different velocities is a simple example to show. This is then followed by an analysis of the situation. An explanation is then given on how to find the relative velocities from different observers' frames of reference.
Using my simulated river, a boat whose motion is upstream, is simulated. The instructor and students then find all the relative velocities of the 3 objects (a person standing on the bank of the river, a boat, and a kayaker floating with the current of the river).
One more dimension is then added to the situation. Now we can simulate at boat in motion upstream and across a river. An example of a boat that is crossing a river is then given. The location where the boat lands on the other side of the river can then be found. The boat's motion is also found in different frames of reference.