The simplest type of motion is motion along a straight line, which involves movement in one direction without deviation.

The total path length covered by the object is 95 km.

Yes, different reference points can be chosen based on convenience or relevance. However, once a reference point is established, it should remain consistent for describing positions in a particular context.

Choosing a reference point or origin provides a consistent framework for describing positions and allows for meaningful comparisons and measurements of distances and directions.

In the example, the railway station serves as the reference point to describe the position of the school, which is stated as being 2 km north of the railway station.