Simple Vector Calc: Homework Solutions

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Homework Help Overview

The discussion revolves around a vector calculus problem involving a parametric representation of a path, specifically r(t) = . Participants express concerns about the clarity of the problem statement and its implications for solving the problem.

Discussion Character

  • Assumption checking, Problem interpretation, Mixed

Approaches and Questions Raised

  • Participants question the adequacy of the problem statement, particularly regarding the assumptions needed to interpret the parametric equations. There is also a discussion about the correctness of a specific working solution and potential discrepancies in calculations.

Discussion Status

The discussion is ongoing, with participants exploring different interpretations of the problem and questioning the assumptions made. Some guidance is offered regarding the correctness of calculations, but there is no explicit consensus on the interpretations or solutions.

Contextual Notes

There is an indication that the problem may lack necessary information, specifically regarding the context of time in relation to the parametric equations. Participants are navigating these uncertainties as part of their discussion.

icystrike
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Homework Statement



attachment.php?attachmentid=33722&stc=1&d=1301507870.jpg


Homework Equations





The Attempt at a Solution



attachment.php?attachmentid=33723&stc=1&d=1301507870.jpg
 

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My only comment would be that the problem is very poorly stated. It is one thing to say the path is given parametrically by r(t) = <t, (1/2)t2> and another thing to say that r(t) describes the position of the motorcycle at time t, t in seconds, which it does not state. The problem is not solvable without assuming that.
 
oh... i think its their negligence.. But if they have stated that.. will my working be correct? :) Thanks again!
 
icystrike said:
oh... i think its their negligence.. But if they have stated that.. will my working be correct? :) Thanks again!

I think mostly correct. I'm disagreeing with your N by a factor of 1/sqrt(2), but I might be off so check it.
 

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