1. The problem statement, all variables and given/known data Find the vertical acceleration of a car going over a speed bump a foot wide and 4 inches tall. 2. Relevant equations Acceleration = dv/dt 3. The attempt at a solution http://imgur.com/55t2WCQ I am getting an answer that is around 25*g I know this is way too much. neglecting the shocks on the car, what assumptions am I messing up that would allow me to do this problem correctly? This isn't homework, rather a small part of a larger project where I need the forces to do failure analysis.