just a question the mass of a 1967 mustang travelling at 40 mph hitting a human (me) in 1980 my weight 179 lbs travelling across the front of the mustang at full run, maybe 3 to 5 mph. what would be the actuall force be in pounds that i recieved? and i am familiar with f=ma but i can't establish the mass. plus the motion involved. both objects came together at 90 degree angle. i am fine 3 days later walking and talking, but did do alot of damage to the car. and there was no braking. so a full 40 mph impact. i am lucky just would like to know the forces involved. thanks. jess.