Another car drove past the car, moving at a speed of 72 km / h. After 10 seconds, the distance between the cars became 100 m. At what speed was the second car moving?
Let’s find the speed of the second car relative to the first one:
100: 10 = 10 m / s
Since the speed of the first car, expressed in meters per second, will be equal to:
72000/3600 = 20 m / s. , then the own speed of the second will be equal to:
20 + 10 = 30 m / s = 30 * 3600 = 108 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.