Percentage uncertainty in speed
A speed in a fieldwork motion sensor log is calculated from \(v=\frac{d}{t}\), with \(d=(3.2\pm0.02)\,\text{m}\) and \(t=(0.76\pm0.01)\,\text{s}\). Calculate the percentage uncertainty in speed. 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.