# Force - Determining F from U

#### Stryder_SW

1. The problem statement, all variables and given/known data

If U = 7x^2 + 9xy + 3(y^2)z, what are the components of the force vector F ?

3. The attempt at a solution
These are the answers I've come up with. I've gotten Fy and Fz correct, but the Fx is wrong and I'm pretty sure its actually right. However, I would love to be proven wrong lol.
Fx=-14x-9y
Fy=-9x-6yz
Fz=-3y^2

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#### tiny-tim

Homework Helper
Welcome to PF!

Hi Stryder_SW! Welcome to PF!
If U = 7x^2 + 9xy + 3(y^2)z, what are the components of the force vector F ?

Fx=-14x-9y
Fy=-9x-6yz
Fz=-3y^2
Well, your Fx looks right to me.

#### Stryder_SW

yeah, I'm about to message my professor lol.

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