Vectors and projectile motion: Right-angle vector addition, vertical motion under gravity and horizontal projectile motion

What this note covers

1. Where this sits in Criterion 5, and the four limits that make it manageable
2. Vectors, scalars and sign conventions you can actually hold onto
3. Adding perpendicular vectors: Pythagoras, then the angle
4. Vertical motion under gravity: one acceleration, all the way through
5. Terminal velocity: the qualitative account the course asks for
6. Horizontal projectile motion: two independent columns
7. The resultant final velocity: putting the two columns back together
8. How Section B examines this — and what separates a top answer

8 sections · 12 key terms & formulas · 6 common mistakes