What is the magnitude and direction of force?

Magnitude of force: Force is measured as the product of mass and acceleration of the moving body.

Force $\overrightarrow{F}=m\overrightarrow{a}$

Here, $m\rightarrow$ mass of the body

$\overrightarrow{a}\rightarrow$ acceleration in the moving body

And force is a vector quantity and its direction does not change with the change in magnitude.