An idealized velocity field is given by $\vec{V}=4 t x \hat{\imath}-2 t^{2} y \hat{\jmath}+4 x z \hat{k}$. At point (-1,1,0) and at $t=1,$ the magnitude of the material acceleration vector of the fluid element is______________
An idealized velocity field is given by $\vec{V}=4 t x \hat{\imath}-2 t^{2} y \hat{\jmath}+4 x z \hat{k}$. At point (-1,1,0) and at $t=1,$ the magnitude of the material acceleration vector of the fluid element is______________