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A particle is moving east wards with a v...

A particle is moving east wards with a velocity of `15 ms^(-1)`. In a time of 10 s, the velocity changes to `15 ms^(-1)` northwards. Average acceleration during this time is (in `ms^(-2))`

A

`3//sqrt(2)` NE

B

`3sqrt(2)` NE

C

`3//sqrt(2)` NW

D

`3sqrt(2)` NW

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The correct Answer is:
C
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