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