Car running over a hump

Using a car of mass 1000Kg, a spring stifness of 5 0000 N/m, a damper coeficient of 90000m/1 and a hump with dimensions 1m in width and 30cm high, how can I write a mathematical model on Matlab that display the displacement of the driver?
I worked out these equations for now: time = (humpWidth/2)/velocity
verticalAcceleration = (2*humpHeight)/time^2
forceonTires = carWeight * verticalAcceleration
But I'm stuck here.

Thank you for any help!