- #1
page123
- 31
- 0
Homework Statement
What are the signs of the forces (positive + or negative -) acting on both situations?
Situation 1:
Situation 2:
Homework Equations
Not really necessary
The Attempt at a Solution
I'm not sure about Situation 1 at all, but I think I got Situation 2:
If I have this coordinate system:
On m1:
Fg1 = -
T = +
On m2:
Fg2 = -
T = +
On m3:
Fg3 = -
T = +
Is that right? Now how would I go about doing Situation 1? Would I have to employ a rotated coordinate system like:
Can anyone list the forces like that?
EDIT: By the way, this is so that I can implement them properly in my equations. For example, Fnet for m1 would then be T - Fg1 instead of T + Fg1. Or is there a better way of doing that instead of using coordinate systems?