A particle moves along the x-axis with a...

A particle moves along the x-axis with a position given by the equation x(t) = 5 + 3t, where x is in metres, and t is in seconds. The positive directions east. Which of the following statements about the particle is false ?

The particle is east of the origin at t = 0

The particle is at rest at t = 0

The particle's velocity is constant

The particle's acceleration is constant

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