Chapter 9 - Impulse and Momentum Flashcards
0
Q
If the force F varies with time (not constant), the magnitude of the impulse equals the area under the F-T graph.
A
.
1
Q
Impulse
A
Product of the average force on an object and the time interval over which it acts.
2
Q
Momentum
A
Product of the object’s mass and the object’s velocity.
3
Q
Impulse-momentum theorem
A
The impulse on an object is equal to the change in it’s momentum.
4
Q
A passenger in a car accident might experience a large impulse, but it is the ______ on the passenger than causes injuries.
A
Force
5
Q
An air bag increases the time interval during which the force acts on the passenger. Therefore,
A
The required force is less
