< Moderator Note -- moved from Academic Guidance to Homework Help > Hey, I'm new here, I decided to register because one of the threads has helped me in the past and I'm hoping for some answers; to get into it, I'm doing research on the physics of being hit by a car/truck, and I've got most the math done, but to make it better I want to know how I can calculate the exact momentum transfer, because as of right now I'm assuming that the pedestrian being hit by the truck is only taking 1/100th of the momentum, leaving him flying at 12m/s in the vertical direction which seemed reasonable. I saw some sort of equation 60*carspeed*Ns, but I don't even begin to grasp that equation. Does anyone have an idea? If I'm saying something completely retarded right now can you help me out so I don't sound this retarded on my presentation? (Grade 11 physics) Thanks in advance, ~Before Also, here's my presentation (powerpoint)(google docs) if you are interested in seeing what I'm doing: https://docs.google.com/presentation/d/1eRI3G0aWYOfkoWJlSwbpdsnroQBWIKnADJzvuxl316k/edit?usp=sharing (just started that today, it's not amazing.) And also one last little thing, what kind of damage would you take if you were hit by something with a momentum of 60 000 and if you hit the ground with a momentum of 670?