- #1
ayans2495
- 58
- 2
- Homework Statement
- What is the mass of the object?
- Relevant Equations
- F = ma
Hiking the Appalachian Trail: A Beginner's Guide
- Thread starter ayans2495
- Start date
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Homework Help Overview
The discussion revolves around a physics problem related to forces, specifically analyzing a scenario involving horizontal motion and drag force. Participants are examining the implications of a horizontal function in the context of net force and gravitational weight.
Discussion Character
- Conceptual clarification, Assumption checking
Approaches and Questions Raised
- The original poster attempts to relate horizontal motion to net force and calculates weight and mass based on gravitational acceleration. Other participants question the completeness of this reasoning, particularly regarding the implications of drag force and its relationship to Newton's second law.
Discussion Status
The discussion is ongoing, with participants providing feedback on each other's reasoning. There is an acknowledgment of correct answers, but also a push for deeper understanding of the concepts involved, particularly regarding the conditions under which net force can be considered zero.
Contextual Notes
There is a mention of a specific question (question 25) that remains unanswered, indicating that the discussion may be part of a larger set of problems or homework assignments.
- #2
ayans2495
- 58
- 2
My answer: Horizontal function implies zero net force. Therefore, weight is 160 N. Thus, mass is 16 kg such that the acceleration due to gravity is 9.8 N/kg. Am I right?
- #3
Delta2
Homework Helper
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Your answers are correct but your reasoning is not entirely correct or it is incomplete I would say. The part of the graph where it becomes horizontal doesn't necessarily imply that the net force is zero, however it is implying it in this specific case of drag force being constant. Why? What's the special thing about drag force and how this combined with Newton's second law implies that the net force is zero.
- #4
Delta2
Homework Helper
- 6,002
- 2,628
You haven't answer question 25 btw but ok its fairly easy after answering the first two questions.
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