Just to show that the definition of coordinate system doesn't affect the final answer, let's re-work the problem using a coordinate system that has the origin at the water instead of at the bridge, an...Just to show that the definition of coordinate system doesn't affect the final answer, let's re-work the problem using a coordinate system that has the origin at the water instead of at the bridge, and let's construct the \(x\) axis so that \(+x\) points upward.
