Why Doesn't the Centering Ring Shift Immediately When Angles Change?

In summary, the centering ring does not start to shift as soon as you change the angle because the equilibrium of the resultant vector can vary based on the data. This effect occurs in situations where the ring is not centered on the degree scale marked off on the edge of the disc.
  • #1
swm06
3
0

Homework Statement


1) Why does the centering ring not start to shift as soon as you change the angle?



Homework Equations


none

The Attempt at a Solution



1) It does not shift because the equilibrium of the resultant vector can vary from -1.5 degrees to 2 degrees based on our data.
 
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  • #2
Welcome to PF;
The question is meaningless to anyone who has not seen the same thing you have - please describe the context.

Off what you've written, if I was setting that sort of question I'd expect a student to show more understanding than that. What is it that causes the effect? How is it that the equilibrium of the resultant vector can vary from -1.5 degrees to 2 degrees?
 
  • #3
How many forces are applied to the centering ring? Three?
Which angle is changed?
 
  • #5
Yes. The centering ring is in the middle. The strings are tied to it. It needs to be centred on the middle of the degree scale marked off on the edge of the disc.
 
  • #6
Why does it "need" to be centered?
In what sort of situations is it is not centered?

What is the angle that you are changing?
 
  • #7
The centre of the degree scale is in the center of the table.
The ring floats above the table due to the tensions in the strings and can thus be positioned anywhere - as long as equilibrium is maintained by it being at that point of cause.
That is exactly what we need to find out from the student. I think the question refers to the degree scale being rotated.
 

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  • #8
This is my lab report. In is the data and my answer to the question. I know it has to do with friction but is it kenetic friction or did i answer the question correctly.
 

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  • #9
Any help please?
 

FAQ: Why Doesn't the Centering Ring Shift Immediately When Angles Change?

What is a force table lab?

A force table lab is an experiment that uses a table with a central pivot and strings attached to it to demonstrate the concept of vector addition and equilibrium forces. It is commonly used in physics and engineering courses to help students understand the principles of forces.

How does a force table work?

A force table works by balancing the forces acting on it. By manipulating the strings and weights attached to the table, the forces can be adjusted to achieve equilibrium. This allows students to see how multiple forces can combine to produce a net force of zero.

What is the purpose of a force table lab?

The purpose of a force table lab is to help students understand the concept of vector addition and equilibrium forces. It allows them to visually see how multiple forces can interact with each other and result in a net force of zero, which is a fundamental principle in physics and engineering.

What are some real-life applications of force tables?

Force tables have many real-life applications, including determining the forces acting on a structure, such as a bridge or building, and analyzing the forces involved in a collision or other physical event. They are also used in fields such as physics and engineering to understand and predict the behavior of forces in various situations.

How can a force table lab be used to improve problem-solving skills?

A force table lab can help improve problem-solving skills by allowing students to apply the principles of vector addition and equilibrium forces to real-world scenarios. By manipulating the forces and weights on the table, students can practice identifying and solving for unknown forces, which can be applied to more complex problems in physics and engineering.

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