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# Acceleration and velocity

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## Problem

A rocket ship starts from rest and turns on its forward booster rockets, causing it to have a constant acceleration of 4, start fraction, start text, m, end text, divided by, start text, s, end text, squared, end fraction rightward.
After 3, start text, s, end text, what will be the velocity of the rocket ship?
Answer using a coordinate system where rightward is positive.
start fraction, start text, m, end text, divided by, start text, s, end text, end fraction
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