An application of Dynamics, very difficult, really

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Homework Help Overview

The discussion revolves around a dynamics problem related to the motion of a print head in a printer. Participants are exploring various aspects of acceleration, velocity, and forces involved in the printing process, particularly focusing on how these concepts apply to the print head's operation and the factors affecting its speed.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are attempting to understand the relationship between acceleration and velocity, as well as the relationship between resultant force and acceleration. There are questions about how these concepts apply to the print head's motion and the implications of physical conditions on printing speed.

Discussion Status

Some participants have provided hints and guidance on how to approach the problem, particularly regarding the application of Newton's laws of motion. There is ongoing exploration of different interpretations of the problem, especially concerning the last part that requires qualitative reasoning about physical conditions affecting print speed.

Contextual Notes

Participants note the constraints of the problem, including the lack of specific data for calculating losses in speed due to physical conditions. There is an emphasis on understanding real-world implications rather than purely numerical solutions.

  • #31
Yes and no. Yes it would make the printer quicker but part iv is really trying to test your knowledge of physics rather than your ability to redesign the printer. They are telling you that the head accelerates, decelerates and stops. I think you are over thinking this.

For example if redesigning the whole printer from a golf ball to an inkjet was a valid answer then it might be equally valid to suggest replacing the entire printer with an industrial printing press capable of printing a few million newspapers a day.
 
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  • #32
CWatters said:
Yes and no. Yes it would make the printer quicker but part iv is really trying to test your knowledge of physics rather than your ability to redesign the printer. They are telling you that the head accelerates, decelerates and stops. I think you are over thinking this.

For example if redesigning the whole printer from a golf ball to an inkjet was a valid answer then it might be equally valid to suggest replacing the entire printer with an industrial printing press capable of printing a few million newspapers a day.
but won't increasing the forces to cause greater accelerations have other drawbacks. How can the force be increased actually?
 

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