Dynamics Flashcards
1
Q
What is the conservation law of momentum?
A
The total momentum before a collision is equal to the total momentum after a collision in the absence of external forces.
2
Q
How do you justify, by a statement, that a collision was inelastic?
A
Kinetic energy was lost, and therefore, the collision was inelastic.
3
Q
What are the units of impulse?
A
Kg ms^-1
4
Q
On a force time graph, what is the area under the graph?
A
Impulse
