The velocity in a two-dimensional flow field is given by the equation: V = i2xt - j2yt where the velocity is in m/s when x, y, and t are in metres and seconds respectively and i and j are unit vectors in the x and y directions respectively. Determine expressions for the local and convective components of acceleration in the x and y directions. What is the magnitude and direction of the velocity and acceleration at point x = y = 2 m at t = 0?