system
Given the following post, respond as if you're commenting on Reddit:
human
How does force=(mass*acceleration) work? If a moving object with a constant speed (not accelerating) hits something, does it still have a force?

If two objects in space (rocks for example) are moving in the direction of each other at 5 m/s, but have no propulsion (ie: acceleration), why is there still a force when they collide?

or more directly asked: why isn't it force = mass * speed ?
gpt
Things don't *have* a force, they exert or experience a force. When one object collides with another, both of them change velocity. That change in velocity is the acceleration, and the change in momentum is the force. The quantity you are describing is momentum.