- #1
Astrum
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Homework Statement
Question is in the attachment
Homework Equations
The Attempt at a Solution
I understand the concept and ideas, but the geometry evades me.
In polar coordinates, we have two components, [itex]\hat{r},\hat{\theta}[/itex]
I know that you just integrate the dot product of [itex]\vec{F}[/itex] and [itex]d\vec{r}[/itex] with the boundaries of position, but how did we find the angle between the two vectors?!