# physics

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if a plane is flying 235 km/h and encounters west wind at 80 km/hr. What's its new velocity?

• physics -

That depends upon the direction of its initial velocity. You must have left some words and a number out of your question.

Whatever it is, add the two vectors.

• Info needed -

The original velocity is not known because the flight direction has not been given.

For example, if it was heading west, the velocity is simply reduced by 80 k/hr to become 153 k/h (ground speed) heading west.

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