The Position of an Object Is Given By $\overrightarrow{\mathbf{r}}=\left(-4.00 t \hat{\mathbf{i}}+6.00 t^{3} \hat{\mathbf{j}}\right) \mathrm{m}$

Multiple Choice

The position of an object is given by $\overrightarrow{\mathbf{r}}=\left(-4.00 t \hat{\mathbf{i}}+6.00 t^{3} \hat{\mathbf{j}}\right) \mathrm{m}$ where t is in seconds. At t = 2.0 s, what is the magnitude of the particle's acceleration?

A) 0 m/s2
B) 2.0 m/s2
C) 17 m/s2
D) 36 m/s2
E) 72 m/s2