Two identical trains \( P \) and \( Q \) move with equal speeds on parallel tracks along the equ...

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Two identical trains \( P \) and \( Q \) move with equal speeds on parallel tracks along the equator. \( P \) moves from east to west and
\( \mathrm{P} \) \( Q \) from west to east.

W
(A) Train \( P \) exerts greater force on track
(B) Train \( Q \) exerts greater force on track
(C) Both exert equal force on track
(D) Data is insufficient to arrive at a conclusion
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