# Kinematics in One Dimension

An automobile traveling v = 85 km/h overtakes a L = 1.15 km long train traveling in the same direction on a track parallel to the road. If the train's speed is 80 km/h, how long does it take the car to pass it (min), and how far will the car have traveled in this time? (km)

What are the results if the car and train are traveling in opposite directions? (in s & in km)

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#### Solution Preview

The relative speed of the car to the train is 85-80= 5km/h

Therefore, it takes 1.15/5=0.23 hours=13.8 ...

#### Solution Summary

The solution includes simple calculations and brief explanation of steps.

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