Doesn't accelerate? Drive a car into into a concrete wall sometime, eh, Vic? The inertia of that wall will accelerate the hell out of the car, even if it does nothing more than stop it dead in its tracks. That is acceleration. And it is the car, not the wall, which gets accelerated.
I don't see any significant difference between "moving" and "resisting movement" in this case.. A force doesn't have to consist of kinetic energy.
You are talking about the normal force not friction or interia, that is something different that is the object's motion being redirected by a solid object. It doesn't accelerate the object it actually slows and moves in another direction even though you may barely notice it. If the object was being accelerated it would move faster rather the crash.
Car crashing into a wall
Edited by VictorMedvil, 14 April 2019 - 05:46 AM.