Work Physics: Grasp the Concept & Pass Your Test

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Discussion Overview

The discussion revolves around the concept of work in physics, particularly in relation to a test preparation scenario. Participants explore the definitions and applications of work, as well as the relevant formulas, while addressing confusion regarding their use in specific problems.

Discussion Character

  • Homework-related
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant expresses confusion about the concept of work and its related formulas, seeking clarification on when to use them.
  • Another participant suggests that the original question is too broad and should be narrowed down for better understanding.
  • A specific problem is presented regarding calculating the work done in propelling a space module to a height of 800 miles above Earth, which includes details about the module's weight and the Earth's radius.
  • A later reply explains that work is defined as the integral of force times an infinitesimal piece of length, and mentions the relevance of the second formula for force in terms of mass and distance, while dismissing the third formula as unrelated to the problem.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the initial question's clarity, with some agreeing that it is too broad while others focus on a specific application of work. The discussion remains unresolved regarding the participant's understanding of work and its application to the presented problem.

Contextual Notes

The discussion highlights the need for clearer definitions and context when addressing broad topics like work in physics. There are unresolved aspects regarding the application of the formulas and the integration process in the context of the specific problem presented.

k1mxzn
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i really don't understand the work idea.. I am studyin for a test and i missed the class where we learned about work and now I am here mindfuct.

i kno these 3 formulas:
f=kd
f=k(m1m2/d^2)
f=k(q1q2/d^2)

i don't understand wen to use these tho.. please hlep me grasp this concept.
 
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This isn't really a calculus question.
 
well its in my calculus book and I am confused as hell right now.
 
Your question is far too broad. That's like asking to write a report on WWII. Narrow your question to something that wouldn't require 10,000 words for a person to guess what it is you don't understand about a huge topic. And make sure your question has to do with calculus or analysis.
 
ok. ill ask the specific question I am confused about:
A space module weighs 15 metric tons on the surface of earth. How much work is done in propelling the module to a height of 800 miles above earth?

The picture shows Earth wit a radius of 4000 miles and then theirs the extra 800 miles between the Earth and space module
 
Work is the integral of force times an infinitesimal piece of length, or integral of force as a function of distance, integrating with respect to distance. The second formula above gives the force in terms of mass and distance. The third gives the force in terms of charge, which is not related to this problem. Good to go?
 

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