Two cars are driving on a straight highway: one at a speed of V, the other at a speed of 4V
| September 2, 2021 | education
Two cars are driving on a straight highway: one at a speed of V, the other at a speed of 4V relative to the highway. the speed of the first car relative to the second is
Given:
V1 = V is the speed of the first car;
V2 = -4V is the speed of the second car.
It is required to find V3 – the speed of the first car relative to the second.
Since the speed of the first car is positive and the second is negative, this means that the cars are moving towards each other. Then the speed of the first car relative to the second will be equal to:
V3 = module (V1) + module (V2) = V + 4V = 5V.
Answer: the speed of the first car relative to the second will be 5V.
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