Potential energy problem pls help

AI Thread Summary
The potential energy in space is expressed in polar coordinates as U(r, θ) = A cos(θ) / r², with A set at 46 N∙m³. To find the x-component of the force at the coordinates x = 1.7 m and y = 1.2 m, one must first convert these Cartesian coordinates to polar coordinates. The force can be derived from the potential energy function by calculating the negative gradient. Participants in the discussion encourage sharing initial attempts to better assist in solving the problem. Understanding the conversion and gradient calculation is essential for progressing in the solution.
xgoodtimesx
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The potential energy in space is given as a function of polar coordinates by the following:


U(r , therta) = Acos therta / r^2


Given that A = 46 N∙m3, determine the x-component of the corresponding force at the location x = 1.7 m, y = 1.2 m.

pls derive a formula to solve this equation
 
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Hi xgoodtimesx! :wink:

Show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:
 
Hi tim,

the problem is i don't even know where to start x_X stuck in the begining
 

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