A train A runs from east to west and another train B of the same mass runs from west to east at the same speed along the equator. A presses the track with a force F1 and B presses the track with a force F2.

Earth rotate about its axis from west to east.For Train A: vA = v - ωrFor Train B : vB = v + ωrFor Train Amg - NA = m(v-ωr)2rNA = mg-m(v-ωr)2r Similarly for Train B :  NB = mg-m(v+ωr)2rClearly NB < NA and F1 > F2