2. Four cars are designed to protect passengers in a 16 m/s crash. The characteristics of the cars are shown below. Which car is most likely to do the best job of protecting the passengers inside?
Car 1
Characteristic
Car mass
Crumple zone length
1,450 kg
110 cm
Car 2
950 kg
50 cm
Car 3
2,000 kg
85 cm
Car 4
1,450 kg
120 cm
200 KN
1,000 KN
50 KN
1,000 KN
4,000 KN
200 KN
2,000 KN
1,000 KN
Crumple zone rigidity
Safety cell rigidity
Seat belt stiffness
Airbag rigidity
20 kN/m
None
11 kN/m
14 kN/m
10 KN
10 KN
None
45 KN
O A Car 1
O B. Car 2
O C Car 3
O D. Car 4