How does that relate to the motion of the car after it hits the bottom?

Once the car hits the bottom, its motion is influenced by the force of impact and any resulting deformations. The car may experience a sudden deceleration upon impact, potentially causing it to bounce back or continue moving forward depending on various factors such as speed, angle of impact, and the collision forces involved. Ultimately, the car's motion post-impact is determined by the interplay of these forces and the properties of the vehicle and the road surface.