Newton's Second Law Explained - Learn the Basics

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Homework Help Overview

The discussion revolves around Newton's Second Law and its application to a scenario involving forces acting on an object. Participants are exploring the implications of different forces, including resistive forces and gravity, in the context of motion along the x-axis.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are questioning the completeness of the force considerations, particularly whether gravity should be included in the analysis. There is also a discussion about the initial conditions of the object and the implications of different initial velocities.

Discussion Status

The discussion is active, with participants raising points about the forces at play and the initial conditions of the problem. Some guidance has been offered regarding the necessity of considering gravity, and there is an ongoing exploration of the assumptions made in the problem setup.

Contextual Notes

There appears to be some ambiguity regarding the initial conditions of the object, specifically whether it is at rest or has an initial velocity. This uncertainty may affect the interpretation of the problem.

don_anon25
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Question answered! Thanks for the input!
 
Last edited:
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That resistive force is not the only force acting on the object (otherwise it'll just sit there). Don't forget gravity.
 
It moves along the x-axis...I forgot to mention that. So gravity is not taken into consideration?
 
If the object is initially at rest in a frame where the only force acting is proportional to velocity squared, then yes, it is obvious that the particle won't do anything. Somehow, I suspect that the question wan't meant to be that trivial.
 
I think that velocity to be v0, not zero. Otherwise, the problem is trivial. I just wanted to check and make sure I wasn't missing anything :smile:
 
Last edited:

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