Solving Rotational Motion: Min Force Required for Incline of 30 Degrees

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Homework Help Overview

The discussion revolves around a problem in rotational motion involving a cylinder being rolled up an incline at an angle of 30 degrees. The original poster is trying to determine the minimum force required to achieve this, while expressing uncertainty about the role of rotational motion in the problem.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to break down the forces acting on the cylinder into components, questioning how rotational motion factors into the problem. Other participants raise questions about the mechanics of pulling the cylinder with a string and the implications of rotation on the problem's complexity.

Discussion Status

The discussion is ongoing, with participants exploring different interpretations of the problem. Some guidance is being offered regarding the mechanics involved, but there is no explicit consensus on the approach to take.

Contextual Notes

Participants are grappling with the integration of rotational motion into the problem and the implications of the setup, including the role of tension in the string and the nature of the forces acting on the cylinder.

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Having a problem figuring this out; it appears extremely easy but I would understand if rotational motion comes into play. I'm just not sure where.

A cylinder of mass 2kg is rolled up an incline by means of a string arranged as shown in the figure. (incline with angle theta and a cylinder being rolled up with a string designating tention) What is the minimum force T required given that the angle of the incline to the horizontal is 30 degrees?

I break it into components (up the ramp and into the ramp are negative) and can say Fx = sin(theta)mg - T = -max

cheers.
 
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If you are pulling the cylinder using a string how can the cylinder rotate?
 
i knooooooooooooo!
 
If you know then why do you mention rotation motion? How is the question made any simpler if rotation comes into play? What do you mean "I'm just not sure where." ?
 

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