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The x and y coordinates of a particle at...

The x and y coordinates of a particle at any time t are given by `x = 2t + 4t^2 and y = 5t` , where x and y are in metre and t in second. The acceleration of the particle at t = 5 s is

A

`40 " m s"^(-2)`

B

`20 " m s"^(-2)`

C

`8 " m s"^(-2)`

D

Zero

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The correct Answer is:
C
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