An Atwood machine consisting of two massless pulleys (one smart pulley without f

Question

An Atwood machine consisting of two massless pulleys (one smart pulley without friction and one pulley with friction) and hanging masses will be provided, as shown in the diagram below. On test day, you will be given specific quantities to solve for experimentally, using the Atwood machine.

Before coming to class on test day, you should thoroughly analyze the Atwood machine system shown and understand all of the physics involved. You will have only a few minutes in class to discuss the experimental problem and the technique to be used with your group, a few minutes to collect appropriate data with your group, and enough time to analyze your data individually and submit a short report. Good experimental technique will receive more points. You will also receive bonus points, if you include error analysis. You may bring your copy of the Evaluation & Analysis of Data document as well as any related notes to class.

Explanation / Answer

Let acceleration of M1 be 'a' downwards. Acceleration of M2 is 'a' upwards. Let tension = T.... So, M1g - T = M1a..... T-M2g = M2a.... Solving, we get a = (M2-M1)g/(M1+M2) T = 2M1M2g/(M1+M2) If you want to know anything else, I will let you know.

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