CAPE Physics Unit 1 · 2008 (Rest of Region) · Paper 1 · Question Q2

Two velocity vectors of magnitude 20\text{ km h}^{-1} and 40\text{ km h}^{-1} are to be subtracted. Which of the following is NOT a possible value for the answer?

1. (A)10\text{ kmh}^{-1}
2. (B)20\text{ kmh}^{-1}
3. (C)30\text{ kmh}^{-1}
4. (D)40\text{ kmh}^{-1}