# The locomotive went half the time at a speed υ1 = 72 km / h, and half the time

June 29, 2021 | education

| **The locomotive went half the time at a speed υ1 = 72 km / h, and half the time – at a speed υ2 = 36 km / h. What is the average speed of a locomotive?**

Task data: V1 (speed of the locomotive in the first half of the time) = 72 km / h; V2 (speed of the locomotive in the second half of the time) = 36 km / h.

Since the movement of a steam locomotive at a speed of 72 km / h and at a speed of 36 km / h took the same time intervals, the formula for calculating its average speed will look like: V = (V1 + V2) / 2.

Calculation: V = (72 + 36) / 2 = 54 km / h.

Answer: The average speed of a steam locomotive is 54 km / h.

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.