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<blockquote data-quote="Ovinomancer" data-source="post: 7493778" data-attributes="member: 16814">YES!!!!No.&nbsp; Sigh.Okay.&nbsp; Again.&nbsp; No wind.&nbsp; Car moves through city in city frame at 20 kph.&nbsp; It therefore feels a 20 kph headwind due to this movement, yes?&nbsp; Okay.&nbsp; Now, go to the car frame, the headwind is still 20 kph, right?&nbsp; Agreed?Good.Now, add in a 5 kph crosswind in the city frame.&nbsp; So, now car is experiencing a 20 kph headwind AND a 5 kph crosswind.&nbsp; Combined, this feels like a 20.6 kph wind coming in at about 14 degrees counterclockwise from the direction of the car's travel.&nbsp; Now, let's switch to the car's frame -- the wind is still 20.6 kph from 14 degree off of dead ahead. The car doesn't feel a different combined wind when you change the frame.Now, that 20.6 kph wind at 14 degrees?&nbsp; It's still a 20 kph headwind and a 5 kph crosswind combining.&nbsp; IE, the crosswind doesn't change direction when you shift the frame.</blockquote>

[QUOTE="Ovinomancer, post: 7493778, member: 16814"] YES!!!! No. Sigh. Okay. Again. No wind. Car moves through city in city frame at 20 kph. It therefore feels a 20 kph headwind due to this movement, yes? Okay. Now, go to the car frame, the headwind is still 20 kph, right? Agreed? Good. Now, add in a 5 kph crosswind in the city frame. So, now car is experiencing a 20 kph headwind AND a 5 kph crosswind. Combined, this feels like a 20.6 kph wind coming in at about 14 degrees counterclockwise from the direction of the car's travel. Now, let's switch to the car's frame -- the wind is [B]still [/B]20.6 kph from 14 degree off of dead ahead. The car doesn't feel a different combined wind when you change the frame. Now, that 20.6 kph wind at 14 degrees? It's still a 20 kph headwind and a 5 kph crosswind combining. IE, [I]the crosswind doesn't change direction when you shift the frame.[/I] [/QUOTE]

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