How do you handle a line backer coming at you with full speed and force.
In football I was a running back/receiver. If I was already moving fast, he's going to miss. They usually did. If I hadn't got up a good head of steam yet, I'm watching his feet. I'm going to hip fake in the opposite direction of where his front step is landing just as we're meeting each other, then go the other way as he adjusts. (right when he has that, "Oh, crap moment) If I had blockers, I'm following them until I see daylight or they're going too slow.
If the question applies to fighting, it depends. It's relatively easy to make big, strong, running guys miss. I also might just tackle him, dive into his legs, I don't care how fast he's going. I have found that fast aggressive people do not do well when you attack them in a straight line, they're not used to it and it messes them up. Especially if once you get there you know how to fight. Football players only know how to fight other football players, drunks and innocents. I'm no innocent. But I do love football and fighting.
And, yes, it's force meeting force, but not really. It would be if I was crashing my upper body into his upper body, but I want his legs. And I want to meet them with great force. Sidestepping is easier, though. But then you have to go chase him.