YanLokChan_4A_hangingbridgeLab

 

Mass side	Mass mid	height from ground	x	uncertaity largest sag	uncertainty smallest sag
0.1	0.05	85.5	0.22	0.24	0.2
0.1	0.07	76	0.315	0.335	0.295
0.1	0.09	65.7	0.418	0.438	0.398
0.1	0.1	58.5	0.487	0.507	0.467
0.1	0.15	18.5	0.89	0.91	0.87
predicted formula	x prediction
	0.2298077291
	0.3285256453
	0.4347495591
	0.4916722409
	0.8384368139

Where do the two curves match? on mass =105g

Where do the two curves start to diverge from one another? after m=105g

What does this tell you about the system? the system starts to loose accuratcy after the middle weight exeeds the side weights What are the limitations on the accuracy of your measurements and analysis? the accuratcy of the metre stick, not totally centered on the rope

How does the vertical displacement of an object suspended on a string between two pulleys depend on the mass of that object? as the mass increases, the angle of the rope increase due to the weight, which increases the vertical tension of the string until the system goes to equilibrium, which determin the displacement. Did your measurements of the vertical displacement of object B agree with your initial predictions? If not, why? mostly, some of the error comes with not frictionless pulley or human error

State your result in the most general terms supported by your analysis. the displacement of the weight changes according to the mass of the weight, which changes the tension of the string when increases.

Do the pulleys behave in a frictionless way for the entire range of weights you will use? no, according to the function of friction, the more mass you put on a object, the higher the friction, it clearly shows in the data that as the mass increases, the data is getting less accurate, a part of it is due to the friction of the pullty increasign.

How can you determine if the assumption of frictionless pulleys is a good one?

we could do that by accunting friction and comparing it.

What information would you need to apply your calculation to the walkway through the rain forest? wind, mass of person, mass of bridge, material strength, length of bridge, hanging mass.