Kinda going back to posts 4-6 ish...
Here’s what I don’t get. Let’s say there’s a constant forwards force of 5N. Then you immediately add an opposing force of 5N backwards. The resultant force is 0, so the velocity doesn’t change. Yet if you added an opposing force of 2N, the velocity would change because the resultant force isn’t 0, and the object would be travelling at a slower velocity than before, when it had no resistive force acting on it. If you applied an opposing force of 4N, the object would slow down by a greater amount than if you applied 2N. So how is it that if you added an opposing force of 5N, the velocity of the object doesn’t slow down further than if you added an opposing force of 4N, but just maintains the original velocity?