Transforming Force Equations with Substitution

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SUMMARY

The discussion focuses on solving the equations for forces F1 and F2 using substitution methods. The equation for F1 is established as F1 = (A1E1 P) / (2A1E1 + A2E2). The relationship for F2 is defined as F2 = P - 2F1. A participant suggests simplifying the problem by substituting the expression for F2 directly into the equation for F1, which streamlines the solution process.

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  • Understanding of force equations in physics
  • Familiarity with algebraic substitution techniques
  • Knowledge of variables A1, A2, E1, E2, and P
  • Basic problem-solving skills in physics
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Students studying physics, particularly those focusing on mechanics and force equations, as well as educators looking for examples of substitution methods in problem-solving.

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Homework Statement


in this question , solving equation 1 and 2 , how to get the
F1 = (A1E1 P ) / ( 2A1E1 + A2E2) ? and also F2 ?

Homework Equations

The Attempt at a Solution


we know that F2 = P -2F1 )
I have tried to sub (F2 / A2E2 ) in F1 = (A1E1 P ) / ( 2A1E1 + A2E2) , but i ended up getting (A1E1P - 3 F1A1E1 ) / A2E2 , which is not same as the author , did i miss out any equation ? [/B]
 

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Hi Chetz,

It's a lot easier: substitute [2] in [1] and there you are !
 

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