Two cyclists are traveling on a straight highway: the first at a speed of 2v
| August 3, 2021 | education
Two cyclists are traveling on a straight highway: the first at a speed of 2v, the second at a speed (-V). what is the speed modulus of the second cyclist relative to the first.
Given:
v1 = 2 * v – speed of the first cyclist;
v2 = (-v) – speed of the second cyclist.
It is required to determine v3 – the speed module of the second cyclist relative to the first.
According to the condition of the problem, the speed of the first cyclist is positive, and the second is negative. This means that the cyclists are riding towards each other. Then:
v3 = v2 – v2 = -v – 2 * v = -3 * v.
| v3 | = 3 * v.
Answer: the speed module of the second cyclist relative to the first is 3 * v.
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