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**1. Homework Statement**

The Carteian coordinates of a point on a circle with its center at the origin are [0.40, 0.30]. What is the arc length measured counterclockwise on the circle from the positive x-axis to this point?

**2. Homework Equations**

**3. The Attempt at a Solution**

Wouldn't they be the complete opposite as in negative cordinates. Since going counter clockwise is - and clock wise is + . I ues the main question I'm asking is what does it mean with the coordinates, does it mean that 0.4 left and 0.3 up? But then what would the radius be? I guess I need a little help getting started otherwise I can do the rest I think on my own. :] You all have helped me so much! I'm not great at torque and rotational motion. More better at the concepts, I'm hrrible at algebra.