Average velocity from graph area
The area under a velocity-time graph for a warehouse trolley sensor log is \(40\,\text{m}\) over \(9\,\text{s}\). Calculate the average velocity. Explain why the selected relationship is suitable before entering the value. Enter the numerical result and choose the interpretation that matches the physics meaning.
Worked practice: physics data and result
Read the physical quantities first, then calculate the result and state what it means.
Write a full answer
Now write the response in full, in your own words — this is what the exam asks for. The AI marks it on the same moves you built above (focus, evidence, technique, judgement) and gives feedback on reasoning, evidence, and expression.