Question

an aircraft can fly at a to speed of 600 km/h . What will its speed be if it flies into a wind of 100 km/h ( the headwind blows in the opposite direction to the aircraft)

Answer 1

Actual speed of the aircraft = 600 km/h

Wind speed opposing the aircraft = 100 km/h

∴ Original speed = Speed of aircraft - Speed of air

⇒ v = 600 km/h - 100 km/h

⇒ v = 500 km/h (answer).

More:-

• If air blowed in the direction of the aircraft, then the speed became 600 km/h + 100 km/h = 700 km/h.
• Speed = (Distance)/(Time)

or, mathematically,

$v = \frac{s}{t}$.

• While we same smaller version of a physical quantity, we add "d" in the previous of the quantity.

Example,

• Smaller speed = dv
• Smaller time = dt
• Smaller distance = dx, etc.

Answer 2

Answer:Air speed= Aircraft speed relative to wind Air Speed= 600- (-100)

= 700 Km/hr

Headwind speed is the speed opposite to the speed of aircraft so it is taken as Negative

I hope you understand it

Explanation: