Two cars are moving at the same speed of 15 m / s relative to the Earth towards each other.

| September 1, 2021 | education

Two cars are moving at the same speed of 15 m / s relative to the Earth towards each other. What is the speed of one car in a frame of reference linked to another car?

Given:

v1 = 15 m / s – the speed of the first car relative to the ground;

v2 = 15 m / s – the speed of the second car relative to the ground.

It is required to find the speed of the first car relative to the second car.

Since, according to the condition of the problem, both cars are moving towards each other, that is, the first car moves from the smaller to the larger side of the X-axis, and the second car from the larger to the smaller side of the X-axis, the relative speed will be equal to:

V = v1 + v2 = 15 + 15 = 30 m / s.

Answer: the speed of one car relative to another will be equal to 30 m / s.



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