1. A thin 20-cm X 20-cm flat plate is pulled at I m/s horizontally through a 3.6-mm-thick oil layer sandwiched between two plates. one stationary and the other moving at a constant velocity of 0.3 m/s, as shown in Fig. P2-45. The dynamic viscosity of oil is 0.027 Pa . s. Assuming the veloc¬ity in cach oil layer to vary linearly. (a) plot the velocity pro¬file and find the location where the oil velocity is zero and (b) determine the force that neeQs to be applied on the plate to maintain this motion.