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If v=(t^(2)-4t+10^(5))m/s where t is in ...

If `v=(t^(2)-4t+10^(5))`m/s where t is in second. Find acceleration at t=1 sec.

A

0

B

`2 m//s^(2)`

C

`-2 m//s^(2)`

D

None of these

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The correct Answer is:
C
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