Displacement while slowing down
During a rail platform motion audit, an object starts at \(8\,\text{m s}^{-1}\) and has acceleration \(-3\,\text{m s}^{-2}\) for \(3\,\text{s}\). Calculate its displacement. 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.