Blowing Smoke

Riddle: An electric train is moving north at 100mph and a wind is blowing to the west at 10mph. Which way does the smoke blow?

Answer: There is no smoke on an electiric train!

Source: https://www.riddles.com/8040

An electric train is moving north at 100mph and a wind is blowing to the west at 10mph. Which way does the smoke blow? — Blowing Smoke by Madoc v1.

Riddle: An electric train is moving north at 100mph and a wind is blowing to the west at 10mph. Which way does the smoke blow? Answer: There is no smoke on an electiric train! — by Madoc v2.