How does inertia affect a person who is not wearing a seatbelt during a collision?

1.  Due to the laws of inertia if an object is stopped abruptly the force of the moving object translates to whatever object it is in contact with which will cause the person not wearing the seatbelt to be propelled forward with the force of the car.
2. The stopping distance changes if constant resistance is applied against two different forces of varying magnitude such that the larger the force the greater the stopping distance.
3. For the same Kinetic Energy the stopping distance of a small vehicle will be less than the larger vehicle due to the conversion of inertia.
4. The best way to prepare for sharp curves is to slow down the car before taking the curve.
5. Due to the laws of inertia and conservation of momentum the faster the car is moving the greater inertia that it will exert and the greater momentum it will generate forward which if the car comes to a stop is translated to the passengers inside which propels them forward with an equivalent force which will be more pronounced as the object being propelled by the same acceleration is now much smaller.

1and 3 i think sorry if wrong