Distribution of weights and net force

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Discussion Overview

The discussion revolves around the effects of different weights and angles on the net force experienced in a physics lab setting, specifically using a force table. Participants explore the relationship between weight distribution, angles, and resultant forces, touching on concepts of static equilibrium and vector decomposition.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant questions why the force changes with different angles if the mass and gravity remain constant, suggesting a need for further explanation.
  • Another participant introduces the concept of breaking forces into x and y components and asks for relevant formulas related to static equilibrium.
  • A participant asserts that the change in force is due to the angle of the applied force, prompting further inquiry into whether other factors might also influence the force.
  • There is a suggestion that drawing a free body diagram could aid in understanding the vector sum of forces.
  • Some participants emphasize the significance of both magnitude and direction in understanding how resultant forces change with angle adjustments.

Areas of Agreement / Disagreement

Participants express differing views on the simplicity of the relationship between angle and force, with some asserting it is straightforward while others seek to explore additional influencing factors. The discussion remains unresolved regarding the complexity of these interactions.

Contextual Notes

Participants have not reached a consensus on whether factors beyond angle, mass, and gravity affect the resultant force. There are also unresolved questions about the specific formulas and methods for calculating resultant forces in this context.

SpicyRamen
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Can someone explain to me why putting different weights in certain angles can alter the force. I was just doing a lab in class using a force table, where the weights dangled and you have to prevent the ring from touching the pole in the center. If the mass of the object doesn't change and ( I'm assuming the gravity is the same applying to all weights), why does the force become greater( or less) in certain areas? and what would one use find the resultant force of two angles?
 
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Can you look at that table and mentally see "x" and "y" axes? What angles would those axes be at?

Since forces are vectors, they can be "broken up" into x and y components. How do you do that?

What formulas describe static equilibrium.

Come back with some of these, or similar, questions answered and some work shown.
 
SpicyRamen said:
If the mass of the object doesn't change and ( I'm assuming the gravity is the same applying to all weights), why does the force become greater( or less) in certain areas?

Because the angle of applied force has changed.

SpicyRamen said:
...and what would one use find the resultant force of two angles?

The resultant force is the vector sum of the components.
 
"Because the angle of applied force has changed."

It can't be just as simple as that can it? Just the angle? Is there another factor that is acting on it that increases( or decreases) the force, besides the the angle, the mass, and gravity? I already turned in the lab before I made this thread so you guys don't have to worry about me leeching, I am just curious how changing a couple of degree, even if minor can have such a great affect.
 
SpicyRamen said:
"Because the angle of applied force has changed."

It can't be just as simple as that can it? Just the angle? Is there another factor that is acting on it that increases( or decreases) the force, besides the the angle, the mass, and gravity? I already turned in the lab before I made this thread so you guys don't have to worry about me leeching, I am just curious how changing a couple of degree, even if minor can have such a great affect.

Yes it is that simple.

Draw a free body diagram, which will help you determine the vector sum.

Think about what a vector is. It has magnitude AND direction. So as the direction (angle) changes so will the resultant force.
 

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