# Two trains are moving towards each other at speeds of 72 and 54 km / h.

August 27, 2021 | education

| **Two trains are moving towards each other at speeds of 72 and 54 km / h. The passenger on the first train notices that the second train passes by him for 14 seconds. How long is the second train?**

The speed of the first train is 72 km / h or 20 m / s.

The speed of the second train is 54 km / h or 15 m / s.

The total speed of oncoming trains is 35 m / s.

The train passed by the passenger for 14 seconds.

Hence its length:

S = V * T = 35 * 14 = 490 meters.

Answer: the length of the train is 490 meters.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.