# What isare the purpose of the pulleys in the force

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Chapter 11 / Exercise 6
Automotive Technology: A Systems Approach
Erjavec/Thompson
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1.What is/are the purpose of the pulleys in the force table?2.Would the results be effected if the strings do not point to the center of the pin?3.Should the mass of the weight hangers be included in the calculations?4.Should the strings be parallel to the force table surface? What if the pulley is higher or lower than the ring?5.Would it matter if the ring is made of plastic or steel?6.Should the Force Table surface be horizontal? What would be the effect on the results if it is tilted in any direction?7.Does it matter if the weights are hanging close to or far from the pulleys?8.Is the mass of the threads important in this experiment?9.How would friction in the pulleys effect the results?10.What are the sources of error in this experiment?11.How can the results if the experiment be improved?12.Which of the methods used in vector addition seem to be the easiest for you?
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Chapter 11 / Exercise 6
Automotive Technology: A Systems Approach
Erjavec/Thompson
Expert Verified
PHYSICS-1ADDITION OF VECTORSEXPERIMENT-3: Addition of VectorsREPORT FORMName: ___________________________________Date: _______________VECTOR RESOLUTION: Resolve the Force vector = 300 g at the 40º angle into its X- and Y-components, by:A)Graphical Method: Scale: 30 g = 1.0 cm. B)Analytical Method: Compute the magnitudes of Fxand Fyby using the Component Method.
PHYSICS-1ADDITION OF VECTORSVECTOR ADDITION: Find the sum of two forces: 100 g at 30ºand 200 g at 120º, by:A)Graphical Method: Scale: 25 g = 1.0 cm. Use Parallelogram method.B) Analytical Method: Compute the sum of the two vectors by using the Component Method as well as the Triangle Method.
PHYSICS-1ADDITION OF VECTORSVECTOR ADDITION: Find the sum of three forces: 100 g at 30º, 200 g at 120º, and 150 g at 230º by:A.Graphical Method: Use a scale of 25 g = 1.0 cm. Use Polygon Method (Tip-To-Tail rule).B) Analytical Method: Use the Component Method.
PHYSICS-1ADDITION OF VECTORSRESULTSFORCE/SR E S U L T A N TGRAPHICALANALYTICAL(TRIANGLEMETHOD)ANALYTICAL(COMPONENTMETHOD)EXPERIMENTALVECTOR RESOLUTIONF= 300 g, θ = 40ºFx = Fy = Fx = Fy =Fx = Fy =VECTOR ADDITION (TWO FORCES)F1= 100 g,θ = 30ºF2= 200 g,θ = 120ºMag =Dir =Mag =Dir =Mag =Dir = EQUILIBRANT:Mag =Dir =RESULTANT:Mag =Dir =VECTOR ADDITION(THREE FORCES)F1= 100 g,θ = 30ºF2= 200 g,θ = 120ºF3= 150 g,θ = 230ºMag =Dir =Mag =Dir =EQUILIBRANT:Mag =Dir =RESULTANT:Mag =Dir =