Question

Modern cars are not rigid but are designed to have 'crumple zones'
(irregular fold) that collapse upon impact. What is the advantage of this
new design?​

Answer 1

Explanation:

Crumple zones work by managing crash energy and increasing the time over which the deceleration of the occupants of the vehicle occurs, while also preventing intrusion into or deformation of the passenger cabin. This better protects car occupants against injury.

Answer 2

Answer:

'Crumple zones' is a safety feature that absorbs some of kinetic energy during collision by increasing the time of impact.

Explanation:

When two cars have a collision, two things happen ;

1. The cars bounce off each other,or

2. The cars crumple together.

When cars bounce off each other there is a larger change in momentum and therefore a larger impulse and a greater force is experienced by the occupants of the cars

According to impulse momentum theorem :J =∆P=F∆t

When cars crumple together, there is a smaller change in momentum and therefore a smaller impulse.The smaller impulse means that the occupants of the car experience a smaller force

Also when the car crumples the change in the cars momentum happens over a longer time

Both these effects result in a smaller force on the occupants of the car thereby increasing their chances of survival.