Multivariable calculus line integral work

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SUMMARY

The discussion focuses on calculating the work done by the force field \( F(x,y) = (ye^{xy})i + (1 + xe^{xy})j \) along the curve \( \gamma(t) = (2t-1, t^2-t) \) for \( t \) in the interval [0,1]. The work is expressed as the line integral \( \int_\gamma \mathbf F(\mathbf s) \cdot d\mathbf s = \int_0^1 \mathbf F(\boldsymbol\gamma(t)) \cdot \boldsymbol\gamma'(t) \, dt \). The discussion also raises the question of whether the force field is conservative and if a potential energy function \( V(x,y) \) exists such that \( \mathbf F(x,y) = \frac{\partial V}{\partial x} \mathbf{i} + \frac{\partial V}{\partial y} \mathbf{j} \).

PREREQUISITES
  • Understanding of line integrals in multivariable calculus
  • Familiarity with vector fields and their properties
  • Knowledge of conservative force fields and potential energy functions
  • Proficiency in calculus, specifically differentiation and integration
NEXT STEPS
  • Study the properties of conservative vector fields and their potential functions
  • Learn how to compute line integrals in multivariable calculus
  • Explore the relationship between force fields and work done along a path
  • Investigate examples of potential energy functions for various force fields
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Students and professionals in mathematics, physics, and engineering who are working with multivariable calculus, particularly in applications involving line integrals and force fields.

kenporock
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calculate the work done by the force field $F(x,y)=(ye^{xy})i+(1+xe^{xy})j$ by moving a particle along the curve C described by
gamma (γ):[0,1] in $R^2$, where gamma (γ)=(2t-1, t²-t)
 
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kenporock said:
calculate the work done by the force field $F(x,y)=(ye^{xy})i+(1+xe^{xy})j$ by moving a particle along the curve C described by
gamma (γ):[0,1] in $R^2$, where gamma (γ)=(2t-1, t²-t)

Hi kenporock,

The work is:
$$\int_\gamma \mathbf F(\mathbf s)\cdot d\mathbf s = \int_\gamma \mathbf F(\boldsymbol\gamma(t)) \cdot d\boldsymbol\gamma(t) =
\int_0^1 \mathbf F(\boldsymbol\gamma(t))\cdot \boldsymbol\gamma'(t)\, dt$$

But before we go there, weren't you studying conservative force fields?
Is this one?
That is, can we find a potential energy function $V(x,y)$ such that $\mathbf F(x,y)=\pd V x \mathbf i + \pd V y \mathbf j$?
 
I am extremely grateful to you.
 

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