Post Lab on Tension: Qs 1 & 2 Answered, Need Help with Q3

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The discussion focuses on the analysis of tension in a system involving two carts, A and B. The participants confirm that the tensions are identical in questions 1 and 2, with the understanding that transferring mass from cart B to cart A decreases the tension between them. For question 3, it is established that the tension in all strings remains constant when the system is stationary, allowing for the calculation of the mass of the hanger.

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Hello,

I am stuck on this post lab question. I have tried to answer questions 1 and 2 but I am unsure of my answers, could someone verify them to make sure I did this correctly? Also, I have no idea how to do number 3! I included screen shots of the problem.

Thanks very much.
 

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1. I agree with your answer - the tension are identical, so one cannot distinquish between the two.
2. When some of B's mass is transferred to A the tensions between the two carts will decrease, so I agree with you again - the pull is less in 2.
3. The tension in all the strings, or all of the tensions, are the same throughout the system when held still. Form this you can calculate the mass of the hanger.
 

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