- #1
PhoniexGuy
- 26
- 0
Okay, so we were doing forces, and my teacher had this question:
So she started out with
Fnet = ma
Then here is where I got confused: She goes to:
Fnet = FT - Fg.
For the second equation, how do you just pull this out, and why does it work, i mean i get the math and can do it, but i don't know why?
Code:
In an atwood machine, a massless, non stretching string passes over a frictionless peg,
one end of the rope is connected to object m1, and the other end to object m2 (heavier).
When the system is released from rest, m2 goes down and m1 goes up, find acceleration.
Fnet = ma
Then here is where I got confused: She goes to:
Fnet = FT - Fg.
For the second equation, how do you just pull this out, and why does it work, i mean i get the math and can do it, but i don't know why?