### Home > APCALC > Chapter 11 > Lesson 11.3.1 > Problem 11-86

11-86.

**Multiple Choice: **A particle moves on a plane curve so that at any time its coordinates are given by

*,*

*. The acceleration vector of the particle at*

*is:*

11-86.

**Multiple Choice: **A particle moves on a plane curve so that at any time its coordinates are given by