# How to calculate (dv_x)/(dt) to find x component using x(t) = -0.62t + 7.2?

$- 0 , 62$
$v \left(t\right) = \frac{\mathrm{dx}}{\mathrm{dt}} = \frac{d}{\mathrm{dt}} \left(- 0 , 62 t + 7 , 2\right) = - 0 , 62$
If $x \left(t\right)$ is in metres, then $v \left(t\right)$ is in $m / s$