Volkswagen Polo Owners Manual: Frontal collisions and the laws of physics
Fig. 45 Unbelted occupants in a vehicle heading for a brick wall
Fig. 46 Unbelted occupants in a vehicle striking a brick wall
First read and observe the introductory information
and safety warnings
The physical principles involved in a frontal collision are relatively simple. As soon as the vehicle is in motion , both the moving vehicle and its passengers gain kinetic energy.
The higher the vehicle speed and the heavier the weight of the vehicle, the greater the amount of energy that will have to be released in the event of an accident.
However, the most significant factor is the speed of the vehicle. If the speed doubles from approximately 25 km/h (15 mph) to approximately 50 km/h (31 mph), for example, the kinetic energy increases by a factor of four.
The amount of kinetic energy depends on the speed of the vehicle and the weight of the vehicle and passengers. The higher the speed and the heavier the weight, the greater the amount of energy that will be released in the event of an accident.
Passengers not wearing seat belts are not connected to the vehicle. In the event of a frontal collision they will continue to move forwards at the same speed at which the vehicle was travelling before impact, until something stops them. Because the passengers in our example are not restrained by seat belts, the entire amount of kinetic energy will only be released at the point of impact against the wall .
Even at speeds of approximately 30 km/h (19 mph) to approximately 50 km/h (31 mph), the forces acting on bodies in a collision can easily exceed one tonne (1,000 kg). These forces are even greater at higher speeds.
This example applies not only to frontal collisions, but to all accidents and collisions.
Warning lamp
Fig. 44 Warning lamp in the instrument
cluster
First read and observe the introductory information
and safety warnings
Lights up or flashes
Possible cause
Solution ...
What happens to vehicle occupants who have not fastened their seat belts
Fig. 47 An unbelted driver is thrown forwards
Fig. 48 The unbelted rear passenger is
thrown forwards, hitting the belted driver
First read and observe the introductory information
and safety ...
Other materials:
Operating ParkPilot
Fig. 120 In the rear bumper: ParkPilot
ultrasound sensors
First read and observe the introductory information
and safety warnings The ParkPilot uses ultraound sensors to
determine the distance between the rear bumper and an obstacle. There are 4 ultrasound
sensors in the rear bumper ...
Introduction
This chapter contains information on the following subjects: → Controls
for the air conditioning system
→ Controls for the heating and fresh air system
→ Information on the air conditioning system
→ Vents
→ Air recirculation mode
...
Sprayable Sealant
Definition:
Sprayable Sealant -D 476 KD1 M2-, gray
Sprayable Sealant -D 476 KD2 M2-, black
Edition 08/2012
Product Description
Sprayable Sealant -D 476 ...
