Which of the following scenarios is possible for the resultant velocity of an airplane in a strong wind to be 150 m/s? A. The wind is blowing at 10 m/s. The airplane is flying against the wind at 140 m/s.

B. The wind is blowing at 20 m/s. The airplane is flying with the wind at 130 m/s.

C. The wind is blowing at 200 m/s. The airplane is flying with the wind at 50 m/s.

D. The wind is blowing at 50 m/s. The airplane is flying against the wind at 100 m/s.

B. The wind is blowing at 20 m/s. The airplane is flying with the wind at 130 m/s.

Explanation:

From Physics we get that resultant velocity of an airplane is the sum of an absolute velocity and a relative velocity, that is:

(Eq. 1)

Where:

- Wind velocity, measured in meters per second.

- Airplance velocity relative to wind, measured in meters per second.

- Airplane velocity, measured in meters per second.

If we assume that (The airplane flies with the wind), , then the resultant velocity of the airplane is:

Therefore, correct answer is B.

hypothesising or postulating

the total distance traveled by the car is

30km + 49km = 79 km .