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 .
(a) F 1> F2 (b) F 1 < F2(c) F1= F2 (d) the information is insufficient to find the relation between F1 and F2 .
