Which movement has the greatest net work done?

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Homework Help Overview

The discussion revolves around a problem related to net work done in different movements, specifically analyzing the implications of constant speed on work and force. Participants are questioning the correctness of an answer key in relation to their own reasoning.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants are examining the reasoning behind their answers and the implications of constant speed on net work. There is a consideration of potential errors in the answer key and a request for confirmation of their thoughts.

Discussion Status

The discussion is active, with participants sharing their reasoning and questioning the validity of the answer key. Some have noted a sense of familiarity with the problem, suggesting that there may be broader implications or similar cases to consider.

Contextual Notes

There is mention of a previous thread that may relate to the current question, indicating that the topic may have been discussed before. Participants are also navigating the uncertainty of the answer key's accuracy.

songoku
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Homework Statement
Please see below
Relevant Equations
W = F.d
1717897815283.png


My answer is (D) but the answer key is (C).

My reasoning is that the net work for (A), (B) and (C) are all zero since the object moves with constant speed so the resultant force is also zero. What is the mistake in my reasoning?

Thanks
 
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Have you considered the possibility that the answer key might be in error?
 
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kuruman said:
Have you considered the possibility that the answer key might be in error?
Yes, but knowing me, it is better to ask for confirmation here.

Thank you very much kuruman
 

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