AHL 3.11 (HL)—Vector equations of lines Topic Practice
AHL 3.11 (HL)—Vector equations of lines Topic Practice
Students practise writing vector equations r = a + tb for motion paths, interpreting components as direction and speed, and adjusting for time offsets.
How this is tested
- write a vector equation of motion from an initial position and velocity
- adjust timing in vector equations when t₂ starts 20 minutes after t₁ by substituting t₁ = t₂ + 20
- describe flight path direction and speed from coefficients in r = a + tb, e.g., west at 1.4 km min⁻¹