What happens with the speed of the body if other bodies cease to act on it or the action of other bodies is compensated?

What will happen with the speed of a body if other bodies cease to act on it or their action is compensated for, is not predictable if you do not know how exactly they interact. For example, if the tractor stops pulling the trailer, the trailer will stop, and vice versa, if the tractor does not have to pull the trailer, its speed will increase. Therefore, the answer is: it is impossible to say for sure.



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