M3.4.2 - motion

motion.; The forms rω 2 and are r required.

Use motion to connect the rule to the data and decision in the question.

This matters because motion determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply motion to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: motion is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.