Newton's second law

Newton’s second law, in modern form, states that the rate of change of the momentum of an object is equal to the net force acting on it. Formally:

$$\mathbf{F}=\frac{d}{dt}\mathbf{p}$$

where
$\mathbf{F}(t)$	net force applied to the object, measured in newtons $\text{N}$
$t$	time, measured in seconds $\text{s}$
$\mathbf{p}(t)$	linear momentum of the object equal to $m\mathbf{v}$ and measured in kilogram meter per second $\frac{\text{kg}\cdot \text{m}}{\text{s}}$
$m$	mass of the object, measured in kilograms $\text{kg}$
$\mathbf{v}(t)$	velocity of the object, measured in meters per second $\frac{\text{m}}{\text{s}}$