The deceleration of the dummy is less than the deceleration of the passenger compartment. Explain why this is of benefit for the safety of a passenger.

In a car crash, the deceleration of the passenger compartment and the dummy (representing a human) inside it are crucial factors that determine the severity of the injuries sustained.

1. Deceleration refers to the rate at which an object slows down. In the context of a car crash, a high deceleration means a sudden stop, which can cause severe injuries due to the high forces involved.

2. The passenger compartment of a car is designed to crumple upon impact. This crumpling effect absorbs some of the impact energy, reducing the deceleration experienced by the passenger compartment.

3. The dummy inside the passenger compartment, however, does not crumple. Therefore, it experiences a higher deceleration than the passenger compartment.

4. The benefit of having a lower deceleration for the passenger compartment is that it reduces the forces experienced by the passengers inside. This can significantly reduce the risk of severe injuries.

5. In other words, the car and its passenger compartment are designed to sacrifice themselves in order to protect the occupants. The more the car crumples, the less the occupants decelerate, and the less severe their injuries are likely to be.

6. Therefore, the fact that the deceleration of the dummy is less than the deceleration of the passenger compartment is beneficial for the safety of the passengers. It indicates that the car's safety features are working as intended, absorbing the impact energy and protecting the occupants.