# A particle

A particle moves in a straight line so that its velocity (m/s) at time t seconds is given by v(t) = 3t

Initially the particle is 8 meters to the right of a fixed origin.

After how many seconds is the particle at the origin?

^{2}-4t-4, t > 0.Initially the particle is 8 meters to the right of a fixed origin.

After how many seconds is the particle at the origin?

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