What is the equivalent stiffness of the system of Fig. 1-19 using the displacement of the block as the generalized coordinate? E= 210 x 10 m2 1= 1.5 x 10° m 2.5 m 2x 10 N 3X 10N Fig. 1-19 Answer: 4,690,000 N/M
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- Please find the Grashof classification and the Barker classification of the two four-bars: (NOTE: distances are in non-dimensional units. Can use inches or cm) P1) L1=d=4, theta1=0 degrees, L2=a=1.6, theta2=60 degrees, L3=b=5.5, L4=c=4.5 P1) L1=d=2.5, theta1=0 degrees, L2=a=2, theta2=45 degrees, L3=b=1.5, L4=c=1.5 Please also draw the four-bars to estimate the unknown angles theta3 and theta4.Two students are playing catch outside. One throws the ball too high and overshoots his friend, hitting the streetlight - whoops! What is the height hB of the ball when it passes over player B? VA В hB ho A ha ha * dBc dAB dAB = 27 ft h4 = 8 ft dBC = 4 ft h. = 10.7 ft 0 = 29° What is the magnitude of v4? Enter your answer correct to two 2 decimal places. ft/s VA%AY X 7 KB/S 67 ۱6 من ۱۶۶۷ 24 6 P1-22 University of Missan Ca) College of Engineering Engineering Mechanics first year Mechanical Engineering Department Assist.Lec. Firas Lattef Hussany Moment Problem 1-30:Determine the moment of the force system of Fig. P1-30 (a) with respect to point O; (b) with respect to point A. Ans. Mo = 200 lb - in. U M = 129 Ib - in. U 30 30° -30b 45" 2016 P1-30 Problem 1-32:A force of 360 Ib is directed from the origin through the point (6,6,3). Determine the moment of the force with respect to the vertical line through the point A at x=3 ft, y=0 and z=2 ft. Ans. M = 120 Ib – ft U Problem 1-33:An F-104 on a refueling mission is subjected to a 14-1lb force as shown in Fig. P1-33. Determine (a) three rectangular components of F; (b) the moment of F about the G axis. Ans. (a)Fx = 12 Ib - Fy = 6 Ib 1 3' F = 4 lb / (b)M = 12 Ib - ft U 7 University of Missan CO) College of Engineering Engineering Mechanics first year Mechanical Engineering Department Assist.Lec.…
- Number of teeth of gears z1: 22 Tooth numbers of gears z2: 90 Tooth numbers of gears z3: 23 Tooth numbers of gears z4: 77 The efficiency of gear pairs ηd: 0,96 The efficiency of the bearing pairs ηr: 0,94 Electric motor speed: 2050 Belt speed (v) (m / s): 1.30 Required force for belt movement (N) g: 2200 a) Find the diameter of the drum? b) Find the required motor power?A guy who works out at your gym found out that you are an engineer and has hired you do an analysis comparing two versions of a similar exercise: lateral raises. He wants to compare using dumbbells (as in Fig 1) versus using a cable machine (as in Fig 2). Develop an equation for each case for the moment about the shoulder as a function of angle. (0 to 90 horizontally) You will use your own dimensions for this analysis. You will need to measure: Arm length from shoulder joint to palm of your hand Height from shoulder joint to the ground Wingspan with arms held horizontally (palm-to-palm) You can use any measurements for the dimensions, just need the equations and FBD Fig 1: Dumbbell Lateral Raises Fig 2: Cable Lateral Raises-800- Dimensions in mm F1 600 F2 F3 900 3. -560-480- What is the x component of F1=701 N?
- The figure below (for illustrative purposes) shows a perfectly rigid (non-deformable) beam which is perfectly rigidly supported at points P and R by two force measurement scales, 1 and 2. PQ is 65 cm and PR is 150 cm. The beam is horizontal when each of scales 1 and 2 gives a reading of zero. Acceleration due to gravity is 9.81 ms-2. Scale 1 Point P Point Q Point R Scale 2 Choose one of the following options that will give the correct readings of scales 1 and 2 when a mass of 30 kg acts vertically downwards at point Q. (The scales are not loaded to you will have to calculate the answer) O A Reading of Scale 1 = 150 kg; Reading of scale 2 = 65 kg O B. Reading of Scale 1 = 166.77 kg; Reading of scale 2 = 127.53 kg O C. Reading of Scale 1 = 150 Newton; Reading of scale 2 = 65 kg O D. Reading of Scale 1 = 166.77 Newton; Reading of scale 2 = 127.53 Newton1-62 Determine the dimensions of c, », k, and P in the |differential equation d²x dx +c- dt + kx = P cos at in which m is mass, x is length, and t is time.Build the following part. Report the volume in mm^3. Assume all dimensions are in mm. A = 44 B = 78 40 20 10 Ø10 40 20 B 15 10 15 R20 30 10 T 20-
- Two cables AB and AC are acting on the pole with forces FAB=540N and FAC = 560N with parameters defining the attachment points shown in the table. We want to write the vector AB in cartesian vector form. C Y₂ parameters value units 540 560 5.5 4 3.5 FAB FAC L Z1 Y 72 4 4 Submit Question N N m m m m m A x + 247.123 Y₁ write the vector FAB in Cartensian Vector Notation. Round your final answers to 3 significant figures. FAB= 282.427 Z B xj+-388.337 N1:54 3.11 A satellite in earth orbit has perigee and apogee radii ofr, = 7500km and r, = 16,000 km, respectively. Find its true anomaly 40 min after passing the true anomaly of 80°. (Ans.: 174.7°)3) ol Cag. - thing shownin Fig.2.2 the tetal hand loss ChL) from Pant 1 to pant Lis soft, hind the presune atpont 2 0.84)s Hlawnginapipeyender the Gand Port 1 D,z 6in こ 10.70 At Point 2 Dzz 9in Pz z 2 4.00Pt Reference detum