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A particles is moving eastwards with a v...

A particles is moving eastwards with a velocity of `5 ms^(-1)`. In 10 s, the velocity changes to `5 ms^(-1)` northwards. The average acceleration in this time is

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`vec(a)_(a v) = (vec(Delta v))/(Delta t) = (vec(v)_(f) - vec(v)_(i))/(Delta t)`

`vec(a)_(a v) = (5hat(j) - 5hat(j))/(10) = (5sqrt(2))/(10) = (1)/(sqrt(2))m//s^(2)`
north-west direction.
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