Rzut pionowy
$$F= m a$$
$$\begin{cases} \quad \displaystyle \frac{\Delta y}{\Delta t} &=& v \\ \quad \displaystyle \frac{\Delta v}{\Delta t} &=& \displaystyle \frac { F}{m} \end{cases} $$
$$\begin{cases}
\quad y &=&y_0\ +\ v_{0}\:\Delta t\\
\quad v &=&v_{0}\ +\ \frac{F}{m}\:\Delta t \end{cases}$$