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1 Problem I 2.11.4 V=[ - l w k CEE 3500 - Sample Exam No. 5 (TEST 1) - Fall 2005 A flat plalc 200 mm x 750 mm slidcs on oil ( p = 0.85 N . s / d ) ovcr a largc planc surface (Fig. X2.11.4).What force F is required to drag the plate at a velocity v of 1.2 d s . if the thickness f of the separating oil film is 0.6 mm? 17 - /t= 0 ~ 2 ~ F 8 . % " ' 3 0.[5 m2. Figure XZ.11.4 ( Problem 2 2.71 , 1 f = ~ h - =PT + Oil Plate F, v VA I Determine the pressure difference between points A and B in Fig. 2-51 26c* , Kqrosene, " s =' 0.88q Fig. 2-51 I Problem 3 3.41 In Fig. 3-33. gate A S is 5 f t widc ilnd opcns to let frcsh water out when the ocean tide is dropping. The hingc nt A is 2 It above thc lrcsh walcr Icvcl. t--' I I Problem 4 A Determine the horizontal and vertical components of force acting o n radial gate ABC in Pip. 5-33u and thcir lincs of action. What force Pis required to open the gate (neglecting the weight of the gate)?