Can the Radius of a Disk Affect the Inclined Plane Experiment Results?

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Homework Help Overview

The discussion revolves around an experiment investigating the relationship between the radius of a disk and the results of an inclined plane experiment, specifically focusing on questions related to energy conservation and the effects of the disk's radius on the experiment's outcomes.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss the application of conservation of energy and the role of the moment of inertia in the context of the experiment. Questions arise regarding the interpretation of variables such as k2 and the implications of the disk's radius on the experiment's mechanics.

Discussion Status

Some participants have offered guidance on using conservation of energy and the moment of inertia, while others express uncertainty about the foundational concepts needed to tackle the questions. There appears to be a mix of attempts and questions, with no clear consensus yet on the approach to take.

Contextual Notes

One participant notes a lack of prior exposure to the relevant concepts at their current educational level, which may affect their ability to engage with the problem effectively. Additionally, the specific parameters of the experiment, such as the radius of the disk, are under scrutiny.

Andrew187
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Hi there I was wondering if someone can help me on this attachment I am stuck on question 1.3 and 1.4. This was an experiment to see relationship between sin and gradient I have confidently completed the first two questions but it is the last two questions which are troubling with I am finding it difficult to get a grasp of. Any help or input would be greatly appreciated.
 

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What is your attempt at the question? It says you have to use conservation of energy. Think of how energy is lost, and how it is gained.
 
On my first reaction I think that g sin\Theta is the total for the sin\Theta from the total and r2 is the radius of the disc which in this case is 750mm but I don't understand what k2 is?
 
Just out of curiosity has anyone ever come across these questions before as I haven't covered even the basics of it in level 3 so I don't know how to tackle this problem this is a level 4 question.
 
First, you should use the moment of inertia in the solution.
If the radius of disk is 750 mm it will drag the ground unless the ramp is raised somehow.
 

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