Figure. shows the x-t plot of one-dimens...

Figure. shows the x-t plot of one-dimensional motion of a particle. Is it correct to say from the graph that the particle moves in a straight line for `t lt 0` and on a parabolic path for `t gt 0` ? If not, suggest a suitable physical context for this graph.

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No, wrong. x-t plot does not show the trajectory of a particle. Context: A body is dropped from a tower (x = 0) at t = 0.

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