3,6 Impact Forces Flashcards
0
Q
What hapens when two vehicals collide? (2)
A
They excert equal and oposite forces on each other
Their total momentum is unchanged
1
Q
When vehicals collide what does the force of the impact depend on? (3)
A
Mass
Change of velocity
The duration of the impact
2
Q
What is the impact time?
A
Time taken for the collision to take place.
3
Q
Why do cars have crumple zones at both the front and back?
A
Because they may be hit from either side and the crumple zone reduces the force on the car or increases the impact time
