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If the displacement of a particle is (2t...

If the displacement of a particle is `(2t^(2) +t +5)` meter then, what will be acceleration at `t = 5sec.`

A

`21 m//s^(2)`

B

`20 m//s6(2)`

C

`4 m//s^(2)`

D

`10 m//s^(2)`

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