I having a little trouble grasping the 3rd law because of this idea in my head about a situation where a large truck going very very fast hits a person standing still. 1)Lets say the truck is going fast enough where the person's body will slightly rupture due to the impact. How can that tiny person exert such a large force back to the truck? 2)If during the collision the two bodies exert an equal magnitude of force on each other how is it that one of the bodies doesn't stop? 3)If the truck hit the person and continued moving in the same direction without hesitation then would the person start moving with the same force of the truck since its initial force was 0N or would it go flying ahead? My guess for the last question is that person would move with the truck(if not on it). I figured that the scenario where the person goes flying is an exaggeration and that the person would seem to go flying ahead if the truck stopped after the collision. Thanks in advance. Sorry for all the questions I'm just genuinely curious. This isn't really a homework related question.