# A dancer moves around a path like the one shown in the figure below with a constant speed.

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asked Sep 30, 2014

## 1 Answer

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A dancer moves around a path like the one shown in the figure below with a constant speed.  Which of the following best represents the magnitude of the dancer's acceleration as a function of time t during one trip around the path, beginning at point P?

Speed is constant, so on straight paths, velocity is constant and acceleration is zero. On circular paths, the acceleration has constant magnitude $a=v^2/r$. So choice (6).
answered Oct 1, 2014 by (21,750 points)