Galilean relative velocity same direction
In a solar car drivetrain test, an object moves at \(25\,\text{m s}^{-1}\) in the lab frame while the observer frame moves in the same direction at \(12\,\text{m s}^{-1}\). Calculate the object's velocity in the moving frame. Read the diagram before calculating the requested 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.