Explain what do you mean by Temporal on Local acceleration, and convective acceleration.

Question

. (i) Explain what do you mean by Temporal on Local acceleration, and convective acceleration.

 (ii) The velocity field in a fluid medium is given by V = 3xyi +2xyj+(2zy+3t)z.

Determine, the rotational velocity vector at (1, 2, 1) and t = 3.