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What is the resultant velocity of a duck flying 10.0 m/s due south against a gust of wind with a speed of 2.5 m/s?
- A -7.5 m/s south
- B 12.5 m/s south
- C 7.5 m/s south
- D -12.5 m/s south
That's Correct!
It's Wrong!
The duck is flying south at a speed of 10.0 m/s, but it is flying against a gust of wind with a speed of 2.5 m/s. To find the resultant velocity, subtract the wind's speed from the duck's speed:
Resultant velocity=10.0 m/s−2.5 m/s=7.5 m/s south
Therefore, the resultant velocity of the duck is 7.5 m/s south. This calculation accounts for the wind's resistance, reducing the duck's effective speed.
