### Home > APCALC > Chapter 11 > Lesson 11.3.1 > Problem11-86

11-86.

Multiple Choice: A particle moves on a plane curve so that at any time $t > 0$ its coordinates are given by $x = \left(2t - 1\right)^{4}$, $y = t^{2} + 1$. The acceleration vector of the particle at $t = 1$ is:

1. $〈1, 2〉$

1. $〈4, 2〉$

1. $〈8, 2〉$

1. $〈24, 2〉$

1. $〈48, 2〉$

$\vec{a}(1)=\langle{x^{\prime\prime}(t),y^{\prime\prime}(t)}\rangle\Big|_{t=1}$