V=(u,v,w,t)=(1+2.5x+y)i+(-.5-1.5x-1.25y)j+(xyz+4ze^-t)k
Find the stagnation point if any,
Find the magnitude of the acceleration at ((x,y,z,t=(-2,-1,1,0)
Assume that u=0, v=0, find the position of the fluid particle along the z-axis as a function of time, what would be the position at time t=infinity?