so if rotation is added, winds are displaced/deflected because they move over a spinning object surface of the earth rotates from west to east, making the sun appear to rise in the east and set in the west
at the equator, earth's surface is far from its axis of rotation, so it moves rapidly (speed is equal to the diameter of the earth)
this is because the equator lies on the "fattest" part of the earth, so in order for that larger circumference to go 360° relative to the "thinner" part of the earth (near the poles, where the circumference is smaller), it must go faster