Gravity and Spring + KE problem

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Homework Help Overview

The discussion revolves around a problem involving gravity, springs, and kinetic energy, focusing on the relationships between work, energy, and forces in a mechanical system.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • Participants express uncertainty about the correctness of their attempts, specifically regarding the application of kinetic energy and work principles. There is mention of a free body diagram and its relevance to the problem.

Discussion Status

Some participants affirm the correctness of the attempts made, while others provide feedback on specific aspects of the reasoning, such as the comparison of force with work done. The discussion appears to be constructive, with participants engaging in clarification and validation of concepts.

Contextual Notes

There is an indication of uncertainty among participants regarding their understanding and application of the concepts involved, particularly in relation to the free body diagram and its implications for the problem.

Lori

Homework Statement


upload_2017-11-8_14-21-47.png


Homework Equations


shown above

KE = .5mv^2
KE = Total Work
Total work = Work by block - work by spring

The Attempt at a Solution


Shown above.

Did i do the problem correctly? I'm always unsure if I am doing the problem right
 

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  • upload_2017-11-8_14-21-47.png
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Looks right.
 
Lori said:

Homework Statement


View attachment 214620

Homework Equations


shown above

KE = .5mv^2
KE = Total Work
Total work = Work by block - work by spring

The Attempt at a Solution


Shown above.

Did i do the problem correctly? I'm always unsure if I am doing the problem right
Yes this is right but you made this free body diagram comparing force with work done
 
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Likes   Reactions: haruspex
Abhishek kumar said:
Yes this is right but you made this free body diagram comparing force with work done
Good point.
 

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