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What does the i\mathbf{i}i component of r(t)\mathbf{r}(t)r(t) represent?
A
The particle's horizontal coordinate.
B
No - their directions can differ.
C
Velocity is obtained from position using v(t)=drdt\boxed{\displaystyle \mathbf{v}(t)=\frac{\mathrm{d}\mathbf{r}}{\mathrm{d}t}}v(t)=dtdr.
D
m s−1\boldsymbol{\mathrm{m\ s}^{-1}}m s−1
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4.8.2 Kinematics (A-level only) Flashcards
22 flashcards on WJEC A Level Maths 4.8.2 Kinematics (A-level only): the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4.