A paricle is moving eastwards with a vel...

A paricle is moving eastwards with a velocity of `5m//s`. In `10s` the velocity changes to `5m//s` northwards. Find the average acceleration in this time.

Zero

`(1)/(sqrt(2)) m//s^(2)` toward north-west

`(1)/(sqrt(2)) m//s^(2)` toward north-east

`(1)/(2) m//s^(2)` toward north-west

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