# A moving particle

A particle of mass $$\SI{1}{\kilogram}$$ is kept at the origin at rest. A force of $$F=3xt$$ Newton is applied on it. Where $$x$$ is the x-coordinate of the position of the particle and $$t$$ is the time elapsed.

Find the time after which it will reach $$x= \SI{4}{\meter}.$$

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