Two cars are moving towards each other. In relation to the Earth, the speed of the first car is 100 km / h, the second

univerkov | November 30, 2020 | education

Two cars are moving towards each other. In relation to the Earth, the speed of the first car is 100 km / h, the second is 70 km / h. What is the modulus of speed of the first car in the frame of reference associated with the second car?

Since the cars are moving towards each other, the relative speed of 1 car in the frame of reference associated with the second car is equal to the sum of the speeds: 100 + 70 = 170 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.