The initial velocity of a particle is $u$ (at $t = 0$) and the acceleration is given by $a(t) = at$. Which of the following relations is valid?

  • A
    $v = u + at^2$
  • B
    $v = u + \frac{at^2}{2}$
  • C
    $v = u + at$
  • D
    $v = u$

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