# If the earth is spinning and we are spinning with the earth, why doesn't it take longer to go opposite the rotation?

Imagine you are on a walking type platform at an airport where you are walking with the platform where it moves you faster walking with......than against. This would be the same concept as if we were walking on earth as we are walking with, or against the rotation of the earth..........or so it seems as the earth and the air are all moving with the rotation of the earth.

Why can't we walk to our destination faster and with less effort walking WITH the rotation of the earth and why doesn't it take more effort as it would on the walking platform to walk against the rotation of the earth? Same with driving long distances. Why is it the same distance taking the same amount of fuel while walking on the platform takes more energy and speed walking the opposite direction?

• In relation to a moving platform id est, in relation to its frame of refference, it does not matter. Being in the earth frame of reference, it does not matter also. If something is not moving in relation to you then it does net matter. Of course, it does matter to the people just standing next to a platform but we are not talking about that. Dec 24 '15 at 8:37
• Why Isn't It Faster To Fly West? (YouTube) Dec 24 '15 at 12:56
• Around the World in 80 Days explains why the travelers thought they were a day late... Jul 8 '18 at 4:48

If it would be more difficult to walk "against" the earth's rotation (a speed of $1600 km/h$ at the equator), then what about the speed of the earth around the sun ($107,000 km/h$, or $29 km/s$)? It would be harder to walk in some direction in summer than in winter.