The initial velocity of a particle is $u$ at $t=0$ and the acceleration $a$ is given by $a = \alpha t^{3/2}$. Which of the following relations is valid?
- A$v=u+\alpha t^{3/2}$
- B$v=u+\frac{3}{2}\alpha t^3$
- C$v=u+\frac{2}{5}\alpha t^{5/2}$
- D$v=u+\alpha t^{5/2}$
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