The airplane flying at a speed of 300 km / h, in calm weather, flew the distance between airfields A and B in 2.2 hours.
| September 7, 2021 | education
The airplane flying at a speed of 300 km / h, in calm weather, flew the distance between airfields A and B in 2.2 hours. Due to the headwind, he made the return flight in 2.4 hours. Determine the wind speed.
Let’s find the speed of the plane in the first and second cases:
300: 2.2 = 1500/11 km / h.
300: 2.4 = 1500/12 km / h.
The wind speed will be equal to the difference between these speeds:
v = 1500/11 – 1500/12 = (18000 – 15600) / 11 * 12 = 2400/11 * 12 = 200/11 km / h.
Answer: the required wind speed was 200/11 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.
