My apologies in advance for so rookie question.
An object (hereinafter A) traveling through space (suppose no pollutant forces) at a constant velocity wrecks against another object (hereinafter B) at rest.
A is going to lose velocity, therefore a negative acceleration has been applied on it.
B is going to acquire velocity, therefore a acceleration has been applied on it.
As an acceleration has been applied on both objects, I affirm that a force has been applied on them.
What and how does the velocity of object A transform into a force when impacting?
I have not seen any magnitude which has ML/T dimension which can explain me this event.
( I suppose there is not one force before impact because A has no acceleration )