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This tag is for the classical concept of forces, i.e. the quantities causing an acceleration of a body. It expands to the strong/electroweak force only insofar as they act comparable to ‘classical’ forces. Use the [particle-physics] tag for decay channels due to forces and [newtonian-mechanics] or one of the other subtopics of [classical-mechanics] for the dynamics of classical systems.

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Is it right to consider an average force over time rather than an impulse?

Consider a particle bouncing back and forth between the two walls, assuming elastic collision with a constant speed equal to v. The velocity diagram can be drawn as such, check the attached image. wh …
Shoham Sen's user avatar