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The position (in meters) of a moving par...

The position (in meters) of a moving particle on a X-y plane is defined by an expression, `r(t)=6t^(2) hati+8t hatj`. Here, t is the elapsed time (in seconds) during the motion, and `hati, hatj` are the unit vectors along I and y directions, respectively. What would be the acceleration experienced by the particle?

A

`12 ms^(-2)` along x direction

B

`8 ms^(-2)` along y direction

C

`7 ms^(-2)` in x-y plane at an angle of `45^(@)`

D

`0 ms^(2)` in any direction

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