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The velocity of a paticle is given by th...

The velocity of a paticle is given by the equation, `v=2t^(2)+5cms^(-1)`. Find (i) the change in velocity of the velocity of the particle during the time interval between `t_(1)=2s` and `t_(2)=4s` (ii) the average acceleration during the same interval and (iii) the instantaneous acceleration at `t_(2)=4s`.

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