Water flows through the slit at the bottom of a twodimensional water trough as shown in...

Water flows through the slit at the bottom of a twodimensional water trough as shown in Fig. P4.29. Throughout most of the trough the flow is approximately radial (along rays from O) with a velocity of V = c/r, where r is the radial coordinate and c is a constant. If the velocity is 0.04 m/s when r =0.1 m, determine the acceleration at points A and B.