# Essay on Engineering Mechanics Revision Finals Exam

1487 Words Apr 24th, 2013 6 Pages
Problem Sheet No. 1

1. Determine the tension in cables CA and CB.
Ans. TCA = 2870 N, TCB = 3520 N.

2. The uniform bar has a mass per unit length of 60 kg/m. Determine the reactions at the supports.
Ans. Ay = 3060 N, By = 2060 N.

3. The uniform angle bar with equal legs has a mass of 20 kg and is supported in the vertical plane as shown. Calculate the force FA supported by the pin at A.
Ans. FA = 277 N.

4. Determine the reactions at A and E if P=500 N. What is the maximum value that P may have for static equilibrium? Neglect the weight of the structure compared with the applied loads.
Ans. Ax = -1290 N, Ay = 2960 N, E x= 3290 N, P=1732 N.
In addition, calculate the force R which the ramp exerts on the cart.
Ans. P = 45.5 N, R = 691 N

The rear-wheel-drive car has a mass of 1400 kg with mass center at G. First calculate the normal forces under the front and rear wheel pairs when the car is at normal test. Then repeat your calculations for the case shown where the front bumper is tested by causing the car to push, via its rear wheels, against the fixed barrier with a 2500-N force. Neglect friction at the bumper-barrier interface, but not at the tire-ground interface.
Ans. Normally, NA = 6310 N, NB = 7430 N Under test, NA = 6720 N, NB = 7010 N

The bracket and pulley assembly has a mass of 40 kg with combined center of gravity at G. Calculate the magnitude of the force supported by the pin at C when a tension of 400 N is applied in the vertical plane to the cable. D is the point of attachment between the cable and the bracket. Is the result remains independent of the position of D?
Ans. C = 952 N

Figure P.S.1.13

Figure P.S.1.14

Figure P.S.1.15

Figure P.S.1.16
If the load on the crane is increased by 4 Mg, compute the corresponding increment (A in the force supported by the pin at A.
Ans. (A = 56.6 kN

Each of the structure is statically indeterminate. Describe at least one modification in the supports for each case which would make the structure statically determinate.

The

## Related Documents

• ###### Pom102 Term Paper

Supply chain management Project management Quality Operations improvement Study, writing and revision skills (in collaboration with David McIlroy) Part Three 107 108 113 118 128 3.1 3.2 3.3 3.4 How to get the most out of your lectures How to make the most of seminars Essay writing tips Revision hints and tips iv OPERATIONS MANAGEMENT 3.5 3.6 Exam hints and tips Tips on interpreting essay and exam questions 140 150 163 168 Glossary Index part one introducing your companion This…

Words: 42442 - Pages: 170
• ###### Proposing and Designing a Student Information System for Spahs Then Evaluating the Proposed Design

project or any other assignment details, final exam result and all these will be available through a secure, online interface embedded in the school’s website. It will also have faculty details, batch execution details, students’ details in all aspects, the various academic notifications to the staff, students and parents updated by the administrator. Different reports and queries can be generated based on vast options related to students, batch, course, faculty, exams, school years, and even for the entire…

Words: 5325 - Pages: 22
• ###### Essay 111135197X 38570

the way I was studying. I decided to put myself on a strict schedule and to go to the library every day after dinner. I continued to follow this plan until the end of the semester. Even now, I still cannot believe how well I did on my final. I received a B on the final and a C for the semester. This is what I think happened: When I reviewed all the materials systematically, I was able to understand principles of chemistry that I did not understand before. Post-test: What Do You Know Now? (page 26-28)…

Words: 17697 - Pages: 71
• ###### The Graduate Record Examinations Essay

More than 3,100 institutions or fellowship committees receive test results (ETS, 2008c). It serves as an objective measure of intellectual aptitude, while striving to be fair and equal, for all prospective graduate students. The GRE’s latest revision includes new question types (text completion and numeric entry) and gradual improvements (highlighted excerpts instead of numbered line references), rather than a completely revised test. The Educational Testing Service concluded that its’ testing…

Words: 4633 - Pages: 19
• ###### Essay Management Control System

operational costs. What Southwest is doing? Southwest flies one airplane type, the Boeing 737 series. The competitors are using all kind of airplanes and models. That saves millions for Southwest in maintenance cost, spare-parts inventories and mechanics training. More, every pilot and crew members will be familiar with every plane. On the other hand, using one type of airplane gives Southwest the opportunity to move the aircrafts through the route network without costly reconfigurations. Southwest…

Words: 13676 - Pages: 55
• ###### Essay on Therac 25

the three constructs used in structured programming? What graphical model is used with the structured design technique? What graphical model is used with the modern structured analysis technique? What model is the central focus of the information engineering approach? Explain what is meant by a waterfall life cycle model. What concept suggests repeating activities over and over until you achieve your objective? What concept suggests completing part of the system and putting it into operation before…

Words: 369031 - Pages: 1477
• ###### Essay about Marketing Management

and services that are closely related in the minds of consumers but are spread across a diverse set of industries. The automobile metamarket consists of automobile manufacturers, new and used car dealers, ﬁnancing companies, insurance companies, mechanics, spare parts dealers, service shops, auto magazines, classiﬁed auto ads in newspapers, and auto sites on the Internet. Car buyers can get involved in many parts of this metamarket. This has created an opportunity for metamediaries to assist buyers…

Words: 230399 - Pages: 922
• ###### Management Essay

Dimension 111 For Critical Inquiry: Analyzing Paragraphs 111 Unity and Coherence: The Psychological Dimension 112 Topic sentences and Discussion: Unity and Coherence 113 For Critical Inquiry: Analyzing Paragraph Unity and Coherence 115 For Final Consideration 115 Terrorflu. Joshua Clover 115 For Critical Inquiry: The Connecting Thread 121 Part 2 WriTing ProjeCTS 123 Introduction: Genres of Writing 124 Writing and Genre Knowledge 124 chaPter 5 Memoirs 125 Writing from Experience…

Words: 271774 - Pages: 1088
• ###### Marketing Essay

Then, by a process of precise logical inference, he is able to reason from those clues to discover the solution to the mystery. Everyone recognizes the importance of precision in specialized ﬁelds such as medicine, mathematics, architecture, and engineering. Critical thinkers also understand the importance of precise thinking in daily life. They understand that to cut through the confusions and uncertainties that surround many everyday problems and issues, it is often necessary to insist on precise…

Words: 240222 - Pages: 961

the C & C P rize with John Hennes Like his co-author, Pa erson is a Fellow of the American Academy of Arts and S ciences, the Computer History Museum, ACM, and IEEE, and h was elected to the National Academy of Engineering, the National Academy of Sciences, and the Silicon Valley Engineering Hall of Fame. He served on the Information Technology Advisory Commi ee to the U .S . P resident, as chair of the CS division in the Berkeley EECS department, as chair o the Computing Research Association, and…

Words: 79068 - Pages: 317
{"found_math": false, "script_math_tex": 0, "script_math_asciimath": 0, "math_annotations": 0, "math_alttext": 0, "mathml": 0, "mathjax_tag": 0, "mathjax_inline_tex": 0, "mathjax_display_tex": 0, "mathjax_asciimath": 0, "img_math": 0, "codecogs_latex": 0, "wp_latex": 0, "mimetex.cgi": 0, "/images/math/codecogs": 0, "mathtex.cgi": 0, "katex": 0, "math-container": 0, "wp-katex-eq": 0, "align": 0, "equation": 0, "x-ck12": 0, "texerror": 0}