IDNLearn.com: Your one-stop destination for finding reliable answers. Our community provides accurate and timely answers to help you understand and solve any issue.
The combined speed of the plane and the wind is 249.35 km/h.
The relative speed of the plane due to speed of the wind is calculated as follows;
Let the direction of the plane be horizontal direction.
The speed of the wind is calculated as follows;
[tex]V_b = V \times cos\theta\\\\V_b = 75 \times cos(70)\\\\V_b = 25.65 \ km/hr[/tex]
The combined speed of the plane and the wind is calculated as follows;
V = 275 km/h - 25.65 km/h
V = 249.35 km/h
Thus, the combined speed of the plane and the wind is 249.35 km/h.
Learn more about relative speed here: https://brainly.com/question/17228388