A particle is moving eastward with the velocity of 5 m/s. In 10 seconds, the velocity changes to 5 m/s northward. The average acceleration in this time is
Correct answer: B. 122 1 m/s² towards north-east
- A. 122 1 m/s² towards north-west
- B. 122 1 m/s² towards north-east
- C. 122 1 m/s² towards south-west
- D. 122 1 m/s² towards south-east
Explanation
The correct option represents the average acceleration towards the direction between east and north, which is north-east. This is derived from the change in velocity vector from eastward to northward.
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