Starting from rest, a particle moving in a straight line has an acceleration of $a=2t\frac{m}{s^2},$ where $t$ is in seconds.

Part A

What is the particle's velocity when $t=3s?$

Express your answer to three significant figures and include the appropriate units.

$v=$

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Part B

What is the particle's position when $t=3s?$

Express your answer to three significant figures and include the appropriate units.

$s=$

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