Newtons Laws - Coefficient of Friction problem

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Homework Help Overview

The discussion revolves around a problem related to Newton's Laws, specifically focusing on the coefficient of friction in a scenario involving acceleration and angles on an inclined plane.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the known variables such as acceleration and angle, and explore how to relate these to the coefficient of friction. There are inquiries about the appropriate equations to use and the role of free-body diagrams in understanding the forces involved.

Discussion Status

The conversation is ongoing, with participants sharing insights about the relationship between calculated and theoretical accelerations. Some guidance has been provided regarding the use of free-body diagrams and trigonometry, but no consensus has been reached on the specific equations to apply.

Contextual Notes

Participants express confusion about the problem and seek clarity on the necessary equations and concepts, indicating a need for further exploration of the topic.

ThatStormy
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Homework Statement


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The Attempt at a Solution


I found the acceleration using kinematics equations.
I don't know how to find the coefficient of friction though.
I need help answering pard b c and d
If you could give me the equations and explain.
Just knowing how to do this one question will help me complete the rest of my homework!
Thankyou
 
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Since you have a known acceleration and a known angle, you can find the difference between the calculated acceleration and the acceleration that would occur if there was no friction between the surfaces. That should help with all the remaining portions.
 
WJSwanson said:
Since you have a known acceleration and a known angle, you can find the difference between the calculated acceleration and the acceleration that would occur if there was no friction between the surfaces. That should help with all the remaining portions.

what equation would i use then?
 
So confused x.x
 
ThatStormy said:
what equation would i use then?

If you draw a free-body diagram of the block on the ramp and use some trigonometry, you can figure out the forces that are acting on it. Try to find the components of the force due to gravity, and the normal force.
 

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