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# Relative motion help watch

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1. A bird can fly in still air at 100kmh. The wind blows at 90kmh from W(x degrees)S. The bird wishes to return to its nest which is due E of its present position, In which direction, relative to the air should it fly?

In the solution, it says that velocity of the bird relative to the air (bVa)=100kmh. But how is this true? The wind blows at 100kmh
2. (Original post by cotkhd)
A bird can fly in still air at 100kmh. The wind blows at 90kmh from W(x degrees)S. The bird wishes to return to its nest which is due E of its present position, In which direction, relative to the air should it fly?

In the solution, it says that velocity of the bird relative to the air (bVa)=100kmh. But how is this true? The wind blows at 100kmh
No, the wind blows at 90 km/h.

The concept of a bird flying in still air at some velocity, is that this is the velocity of the bird relative to the air.

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Updated: February 15, 2018
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