In the first 10th of a second in the collision the vehicle and everything inside are going at a different?

In the first 10th of a second during a collision, the vehicle experiences a rapid deceleration, while everything inside, including passengers and unsecured objects, continues to move at the vehicle's pre-collision speed. This difference in motion creates a significant risk for injury, as inertia causes these items to collide with the interior of the vehicle. Proper safety measures, like seatbelts and airbags, are crucial to mitigate these forces and protect occupants during such events.