How Do I Calculate the Position of a Mass Pole System Under Applied Force?

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Homework Help Overview

The discussion revolves around calculating the position of a mass-pole system under an applied force, specifically focusing on the dynamics involved when torque is applied at a pivot point. The problem involves understanding the relationship between torque, moment of inertia, and the resulting motion of the system.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants discuss the need to understand the transient response of the system to an impulse input, questioning the specifics of the mass and dimensions involved. There are inquiries about the role of the moment arm and the implications of the mass of the connecting rod.

Discussion Status

Some participants have offered insights into the factors affecting the system's motion, such as the moment of inertia and applied torque. However, there is no explicit consensus on the approach to take, and multiple interpretations of the problem are being explored.

Contextual Notes

There are constraints regarding unspecified mass and dimensions, as well as a request for participants to demonstrate effort in their problem-solving process. The original poster expresses a desire for assistance in visualizing the system's rotation over time.

mabauti
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I want to know the x,y position at the time t of this system when I apply a force in the direction showed, how do I find it?

http://img152.imageshack.us/img152/7937/systemfr8.gif
 
Last edited by a moderator:
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We respectfully request students (and others) to show some effort and work.

This is a problem in which a torque is applied at a pivot to which a mass is attached by a moment arm, which in this case has length 11 (no units specified). The mass m is also not specified, and it's not clear whether or not the mass of the connecting arm (or rod) has a mass.

The position as a function of time will depend on the moment of inertia of the moment arm and mass, m, and the applied torque.

Here is a nice reference - http://hyperphysics.phy-astr.gsu.edu/hbase/mi.html

http://hyperphysics.phy-astr.gsu.edu/hbase/n2r.html#n2r
 
sorry for the delay Astronuc >_<.

What I want, is to know the transient response to an impulse input to that system. The length of the rod is L1 and massless
 
Here is something I made, can someone correct my homework?

Maybe Mabauti can calculate the solution for me, so I can see how the thing rotates in function of time.
 

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