# Two trains leave the same train station at the same time, moving along straight tracks that form 35 angle. If one train travels at an average speed of 100 mi/hr and the other at an average speed of 90 mi/hr, how far apart are the trains after 30 min?

##### 1 Answer

Nov 3, 2016

**Trains are** **miles apart after** **minutes.**

#### Explanation:

The train with

The train with

So this may be regarded as a triangle of which sides are

by applying cosine law,

The trains are