Newton is the name of the renowned mathematician. However, thanks to his ingenious inventions and physics formulas, it is also the name of forces and laws. In honor of this scientist, the international SI unit for force is Newton. That is force is basically measured in newtons just as mass I measured in kg.
It is defined as force of 200 newtons against the motion of a cart. Basically this is a form of kinetic energy. You can calculate it by multiplying the mass of the cart with the acceleration that is going with. This will give you the force of the cart when it will hit an object.