Posted by **JD** on Thursday, July 31, 2014 at 3:27pm.

Two trains, one starting in Calgary and the other in Edmonton, travel toward one another. The Edmonton train travels at 120 km/h toward Calgary, while the Calgary train travels at 140 km/h toward Edmonton. If the trains begin at the same time and Edmonton and Calgary are 285 km apart, how far from Calgary will the trains pass each other? (153 km)

- Physics -
**bobpursley**, Thursday, July 31, 2014 at 3:30pm
time to crash: distance/velocity=153km/260km/hr=.588hr

distance from calagary: 140*.588 km

- Physics -
**Steve**, Thursday, July 31, 2014 at 5:04pm
The trains approach at 260km/hr

The distance to cover is 285km. So, it takes 285/260 hrs to meet.

In that time, the train from Calgary covers 285/260 * 140 = 153 km

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