- #1
Power Dissipation: Understanding Equations & Solutions
- Thread starter soupastupid
- Start date
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Homework Help Overview
The discussion revolves around power dissipation in the context of physics, specifically focusing on the equations related to power, force, and velocity. Participants are exploring the relationships between these variables and the implications of drag force in their calculations.
Discussion Character
- Exploratory, Conceptual clarification, Mathematical reasoning
Approaches and Questions Raised
- Participants are questioning the validity of different equations for power, particularly the substitution of force in the power equation. There is an exploration of how power relates to velocity and drag force, with attempts to derive relationships based on proportionality.
Discussion Status
Some participants have made progress in understanding the initial parts of the problem, while others are still grappling with the implications of their equations. Guidance has been offered regarding the need to carefully consider each factor in the drag formula, indicating a productive direction in the discussion.
Contextual Notes
There appears to be a focus on the proportional relationship between power and velocity, with specific attention to how changes in power affect velocity. Participants are also navigating through assumptions related to the drag coefficient and area in their calculations.
- #2
Doc Al
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- 45,584
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This is correct.soupastupid said:
But this is not. You made an error when you substituted for F in the power equation. Redo it, paying attention to each factor in the drag formula.
- #3
soupastupid
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- #4
Doc Al
Mentor
- 45,584
- 2,459
Solve for Vf in terms of Vi. (Take the cube root of both sides.)
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