Answer:
50 m/s
Explanation:
Hi.
just for little clarification, I'd explain what a tail wind is, if you don't mind.
A tail wind is a wind that moves in the direction of the aircraft. If an aircraft is moving in a direction northwards, then a tail wind is also a wind moving northwards.
Now to the question, the airplane is flying at, 150 km/h with a tail wind of 30 km/h.
The airplane's speed is then,
150 + 30 = 180 km/h
And to convert to m/s, we have
180 km/h = 180 * 1000/3600 m/s
180 km/h = 50 m/s
