Acceleration $\vec a$

How much faster you go; how fast you are speeding up; how many extra metres-per-second your velocity increases with each second.

$$\vec a=\frac{\mathrm d\vec v}{\mathrm dt}$$

$\vec v$ is velocity and $t$ is time.

• Vector property
• Symbol: $\vec a$
• SI-unit: Metres-per-second-squared $\mathrm{m/s^2}$