Hi. My problem (from my picture) is which string (A or B) has more tension when the 50g object accelerates down and both carts move left. The pulley and string can be considered massless and frictionless.
Fnet = m*a
The Attempt at a Solution
My thinking is string B has more tension than string A once they're accelerating left. I think this the reason because according to Newton's 2nd Law, F=ma, the string in between the carts has more force since the objects between it (carts 1 & 2) have a bigger mass than the what the two objects string A is in between (hanging mass and cart 1).
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