Momentum Flashcards
1
Q
What is Newton’s definition of momentum?
A
momentum of a moving object is its mass x velocity
2
Q
Is momentum vector or scalar?
A
vetir
its direction is the same as the direction of the object’s velocity
3
Q
What is Newton’s second law of motion?
A
the rate of change of momentum of an object is propotional to the resultant force on it
resulstant force is propotional to the change of momentum per second
4
Q
What does the area under the line of a force-time graph represent?
A
change in momentum or the pulse of the force
5
Q
How does the material effect the force of the impact time?
A
a non stiff material increases the impact time
this reduces the force of the impact
