From two cities, the distance between them is 800 km, two trains left at the same time, their speed was 85 km / h and 75 km / h.
| December 6, 2020 | education
From two cities, the distance between them is 800 km, two trains left at the same time, their speed was 85 km / h and 75 km / h. After how many hours the trains will meet.
Given:
S = 800km
V1 = 85 km / h
V2 = 75km / h
Find: in how many hours will the trains meet?
Decision:
1) V (speed) approach = V1 + V2 = 85 + 75 = 160 km / h
2) t = s / v = 800/160 = 5 hours
Answer: in 5 hours the trains will meet
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.
