Скачать или смотреть Code 2D motion in glowscript

TYPO IN GRAPH UNITS at 19 minute mark. Units for velocity should be m/s...not m. Apologies.

In this video I show you how to code constant acceleration. It should be easy for you to upgrade this code so you first define cow.m (mass of the cow). Then apply a known force vector to the cow, perhaps F = vec(1,0,0) . After that, compute acceleration directly using cow.a = F/cow.m.

This code modification to the code essentially implements the Euler-Cromer Method:
First update force (if constant no update needed).
Next update momentum (or velocity).
Next update position.
Finally, increment time.

This order of updates is crucial if you want energy to be conserved by your code (a wise idea).