8.1.4 - Forces in Collisions Flashcards
1
Q
What is acceleration due to gravity?
A
9.81 m/s
2
Q
What can negative accelerations be?
A
Dangerous.
3
Q
How can a slowing car be dangerous?
A
The seatbelt will exert a force upon you because you will continue to move at a constant speed.
4
Q
In terms of inside your body, why can negative accelerations be dangerous?
A
Internal organs will move forward.
5
Q
How do stretchy seatbelts and crumpling airbags, road barriers and bumpers decrease the danger of a slowing car?
A
Increase the time of collision.
