Explain Why The Ring Does Not Simply Run Over The Edge Of Force
Results and Analysis
1. Why were pulleys used in the experiment? Why were the strings not simply run over the edge of the force table?
Pulleys were used in this experiment to allow the center ring to hover over the middle and thus allowing a more accurate of what angles and weights would be needed to determine equilibrium. If the strings had simply been run over the edge of the force table, it would have been hard to determine whether or not the center ring was balanced or if it was stuck on the table.
2. Explain why the ring does not accelerate (begin to move from rest) in some configurations even though there are several forces acting upon it.
The ring does not accelerate because the several forces acting upon it are at equilibrium. While …show more content…
consisting of different weights, they are balanced with their corresponding distance from each other and the angle they are positioned at.
3.
On datasheet 1, draw a diameter that passes through 0° and call this the x-axis. Define which end of the diameter is positive and find the component of each force along the x-axis using trigonometry. Show your working in detail. Draw another diameter that passes through 90° and define which end is positive, call this the y-axis. Determine the component of each force along the y-axis. Find the sum of the components in the x and the y axes. What is the resultant force on the ring? Is this what you expect?
See attached graph and calculations.
The resultant force on the ring is 100 grams. This is expected because the third force on the ring is also 100 grams thus making the system in equilibrium.
4. In part 2 of the experiment explain whether you think that the experiment showed that the use of vectors to represent forces was useful in predicting the balance point. What are the advantages of the vector approach?
In a lab setting, the advantages of using the vector approach are that you can predict and have an idea where you will need to put the strings in order for the forces to be in equilibrium. In a real world setting, the advantages are obvious because engineers can design bridges and other structures with an idea of where they have to place supports before they even start
building.
5. The vector analysis of forces seems to indicate that the end result of applying a balanced set of forces to the ring is the same as not applying any force at all. To what extent is this true? (Think in terms of the how the object moves under both conditions and also about what the forces will do to the ring if they are very large.)
This assumption is true to some extent because when there are no forces applied to the ring, it is in equilibrium. The same is true when the forces applied to the ring are balanced, in other words, in equilibrium.
Conclusion
The purpose of this experiment was to demonstrate the techniques for adding vectors, and to verify that the sum of the force vectors on a stationary object is zero. This applies to the material being studied because it’s a physical application of translation equilibrium.
1. Why were pulleys used in the experiment? Why were the strings not simply run over the edge of the force table?
Pulleys were used in this experiment to allow the center ring to hover over the middle and thus allowing a more accurate of what angles and weights would be needed to determine equilibrium. If the strings had simply been run over the edge of the force table, it would have been hard to determine whether or not the center ring was balanced or if it was stuck on the table.
2. Explain why the ring does not accelerate (begin to move from rest) in some configurations even though there are several forces acting upon it.
The ring does not accelerate because the several forces acting upon it are at equilibrium. While …show more content…
consisting of different weights, they are balanced with their corresponding distance from each other and the angle they are positioned at.
3.
On datasheet 1, draw a diameter that passes through 0° and call this the x-axis. Define which end of the diameter is positive and find the component of each force along the x-axis using trigonometry. Show your working in detail. Draw another diameter that passes through 90° and define which end is positive, call this the y-axis. Determine the component of each force along the y-axis. Find the sum of the components in the x and the y axes. What is the resultant force on the ring? Is this what you expect?
See attached graph and calculations.
The resultant force on the ring is 100 grams. This is expected because the third force on the ring is also 100 grams thus making the system in equilibrium.
4. In part 2 of the experiment explain whether you think that the experiment showed that the use of vectors to represent forces was useful in predicting the balance point. What are the advantages of the vector approach?
In a lab setting, the advantages of using the vector approach are that you can predict and have an idea where you will need to put the strings in order for the forces to be in equilibrium. In a real world setting, the advantages are obvious because engineers can design bridges and other structures with an idea of where they have to place supports before they even start
building.
5. The vector analysis of forces seems to indicate that the end result of applying a balanced set of forces to the ring is the same as not applying any force at all. To what extent is this true? (Think in terms of the how the object moves under both conditions and also about what the forces will do to the ring if they are very large.)
This assumption is true to some extent because when there are no forces applied to the ring, it is in equilibrium. The same is true when the forces applied to the ring are balanced, in other words, in equilibrium.
Conclusion
The purpose of this experiment was to demonstrate the techniques for adding vectors, and to verify that the sum of the force vectors on a stationary object is zero. This applies to the material being studied because it’s a physical application of translation equilibrium.