Two passenger trains are passing each other on adjacent tracks. Train A is moving east with a speed of 35.5 m/s, and train B is traveling west with a speed of 33.4 m/s. (a) What is the velocity (taking due east to be the positive direction) of train A as seen by the passengers in train B? (b) What is the velocity of train B as seen by the passengers in train A?

2 answers

Amanda/ar/JJ -- please use the same name for your posts.
They are moving in opposite directions
35+33.4=68.4 east and 68.4 west.