Hanging bridge lab

 


Where do the two curves match?  Where do the two curves start to diverge from one another?  What does this tell you about the system? 
The two curves appear to match at lower values of the middle mass (around 0.05 kg to 0.07 kg).
They begin to diverge beyond 0.07 kg, around 0.09 kg and 0.11 kg, where the measured vertical displacement starts to deviate more. At lower masses, the system behaves as expected, following the theoretical model.

What are the limitations on the accuracy of your measurements and analysis?
The assumption of frictionless pulleys may not hold for larger masses and possible stretch in the string or deformation in the setup could introduce systematic errors.

What will you report to your supervisor?  How does the vertical displacement of an object suspended on a string between two pulleys depend on the mass of that object?
The vertical displacement generally follows the expected trend, but discrepancies emerge for larger middle masses. The relationship is approximately linear for lower values but shows some deviation at higher masses, suggesting additional forces at play.

Did your measurements of the vertical displacement of object B agree with your initial predictions?  If not, why?  State your result in the most general terms supported by your analysis. 
The measurements align well with predictions at small masses but deviate for larger masses. Reasons could include pulley friction, string elasticity, or experimental errors.

Do the pulleys behave in a frictionless way for the entire range of weights you will use?  How can you determine if the assumption of frictionless pulleys is a good one?
probably not since deviations in the graph show increasing resistance at higher weights. You can determine it by measuring the system’s response with and without lubrication or compare force measurements during upward and downward motion for signs of resistance or look for nonlinearity in small-mass behavior.

What information would you need to apply your calculation to the walkway through the rain forest?
The mass and tension properties of the cables.
The expected load variations, environmental effects like wind and moisture, or he elasticity and breaking point of the material.


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