Finding length of an arc produced by projectile

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Discussion Overview

The discussion revolves around deriving a formula for the length of an arc produced by a projectile's trajectory, with a focus on the mathematical approach to calculating arc length. Participants explore the relationship between projectile motion and calculus, particularly in the context of high school-level understanding.

Discussion Character

  • Exploratory, Technical explanation, Homework-related

Main Points Raised

  • One participant expresses curiosity about deriving a general formula for arc length but finds the calculus involved to be challenging and questions the validity of their approach.
  • Another participant suggests that the original poster should share their work to facilitate assistance.
  • A third participant indicates that the arc length question is more appropriately categorized as a mathematical problem rather than a physics problem.
  • A later reply notes that an ideal ballistic projectile follows an inverted parabolic path, acknowledging the complexity of calculating the arc length but affirming that it can be solved using the arc length formula.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the best approach to the problem, and multiple perspectives on how to categorize the question (mathematical vs. physics) are presented.

Contextual Notes

The discussion highlights the challenges of applying calculus to derive the arc length and the potential for confusion regarding the classification of the problem. There is an indication that the original poster's understanding of calculus may be limited, which could affect their derivation.

Who May Find This Useful

This discussion may be useful for high school students grappling with calculus concepts related to projectile motion and arc length, as well as those interested in the intersection of mathematics and physics.

sk0071
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So I decided to try deriving a general formula for fun. Being a high school student, the calculus got scary very fast. At this point, I'm just curious as to what the best approach to this might be. The approach I used was finding y as a function of x and then inputting it into the arc length formula. I eventually derived a very complicated formula that I think is wrong. I don't know very much about calculus as everything I've learned about it I've learned through the internet. Would this approach work? Is there a better way? If so what is the correct formula?
 
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You should post what you've done as homework. It's not possible to help without seeing what you've done.
 
Arc length question is best posed as a math question - not physics.
 

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