Interesting replies, thank you all!
I’m still not sure about the Force x distance or Force x speed part, if that distance should be relative to air or ground. I guess it might be complex because the general assumption is that the wind speed is relatively low, so most of the apparent wind is from the speed of the bike?
Rough diagram with the boat responding to the Watts to stand still: if you didn’t have the friction of the tyres resisting the force of the wind, you would need to do power to have a 0 velocity relative to the ground. Consider the boat on a river, it might do 10kph up stream in a 10kph flow and have a speed of 0 relative to the ground, but still be doing the same watts as doing 10kph up stream in a 0kph flow and have a 10kph speed relative to the ground.
The bike is more complex! Some things are definitely vs. ground, others vs. air, or not? Still confused!
