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 VANumber 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 Raises1-62 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.%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.…
- -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 NewtonTwo 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 N
- 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 20-1:54 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°)Q4/ For the figure below, all : dimensions in inch. A/The total Area 1.5 2.5 2.5 2.5 2.5 14 12.6 13.68 13.5 31 14.68 25.93 22.5 12 24 0 أخری: