Answered: The figure below is the x−t graph of…

The figure below is the x−t graph of the motion of a particle. Of the four points P, Q, R and S, the velocity vx is greatest (most positive) at what point?

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Question

The figure below is the x−t graph of the motion of a particle. Of the four points P, Q, R and S, the velocity vx is greatest (most positive) at what point?