Forces and Momentum Flashcards
1
Q
What is momentum?
A
A property of moving objects with v and m
[p=mv]
It is conserved in an isolated system…can be TRANSFERRED.
2
Q
Can you derive Newton’s 2nd Law to show F=𝛥p/𝛥t????
A
Now try deriving Newton’s 3rd Law to show 𝛥p1= - 𝛥p2 AND THEREFORE 𝛥p1 + 𝛥p2 = 0 :))))))))
3
Q
Multi-image Diagrams
A
- Just need to know that the distance between successive images is a #measure of speed#.
- Mass is important when drawing the momentum.
- When collide –> The momentum COMBINES
4
Q
Space Propulsion 0-0
[LOCOM]
A
When an object is in a vacuum, there is nothing “push back on” to propel the body forward.
We can use LOCOM to move through space tho
5
Q
How does an Ion Thruster work?
A
6
Q
How does a Solar Sail work?
(+vector diagrams to show LOCOM)
A
