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4.11.2 Vectors (A-level only)

Why can speed not replace velocity in a vector calculation?

A

If AAA and BBB have position vectors a\mathbf{a}a and b\mathbf{b}b, then AB→=b−a\boxed{\overrightarrow{AB}=\mathbf{b}-\mathbf{a}}AB=b−a​.

B

Speed loses the velocity's direction.

C

For constant acceleration, displacement using initial and final velocities is s=12(u+v)t\boxed{\mathbf{s}=\frac{1}{2}(\mathbf{u}+\mathbf{v})t}s=21​(u+v)t​.

D

For constant acceleration, final velocity is given by v=u+at\boxed{\mathbf{v}=\mathbf{u}+\mathbf{a}t}v=u+at​.

4.11.2 Vectors (A-level only) Flashcards

  1. A Level
  2. /Maths
  3. /4.11.2 Vectors (A-level only)

Flashcards for WJEC A Level Maths 4.11.2 Vectors (A-level only), covering the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4. 21 cards, matched to the WJEC A Level Maths (1300QS) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.

Flashcards