CE 270 - Final Exam Problem No. 1. (20 points) A rectangular cross-section that is 50 mm wide and 250 mm deep is subjected to shear force of 22 kN‚ axial force (tension) of 16.5 kN and bending moment of 33 kN-m. Calculate and show the stress diagrams in the cross-section. What is the maximum normal stress‚ and where does it occur. What is the maximum shear stress and where does it occur. Problem No. 2 (20 points) Determine the principal stress‚ the maximum in-plane shear stress
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Force is required to produce motion in a body. Once it gains motion‚ it will‚ without any further force‚ keep on moving with uniform velocity and zero acceleration only in ideal case where there is no friction force. If friction force was completely removable‚ everything in the universe would then keep on moving without any external force once it was set into motion. But it is a fact that friction can never be completely removed‚ thus the notion of ever uniform velocity is not possible in this real
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In this investigation three different variables were tested to determine their effect on the force of friction. All throughout the lab it was important to record the data found to identify how much the three variables affected the force of friction. The purpose of the first part of the lab‚ 4.1 What a Drag!‚ was to measure the force required to pull a block over five different surfaces. The sliding surfaces used in the lab were the tabletop‚ waxed paper‚ paper towel‚ fine sandpaper‚ and coarse sandpaper
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Proving the Principles of Force I. Purpose: The purpose of this lab is best understood by the statement of that the net force is described as having a direct proportional relationship to acceleration while having an inverse relation to mass‚ this lab is performed to study the roles of these two variables in the real world and see firsthand how they play a role in net force as well as to test the following hypothesis. II. Hypothesis: If an Atwood machine is used to calculate acceleration on a pulley
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Five Forces This model focuses on the study of the competitive influences or ‘forces’ on a business. When we discuss competitive factors on a firm‚ we usually consider other firms within the same industry selling similar products. [1] and although it is true that other firms in the same industry present competition‚ Porter challenged this over simplified view by considering other forces that will also affect the firms competitive ability . The diagram below highlights the 5 main forces.
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Porter’s five competitive forces in business Business is a form of system that exchanged services or goods with money. When we commence a business in Singapore‚ we have to invest in that business with efficient capital. Successful businesses enable us to gain profit and expand our business to a larger size. Therefore‚ there are a few principles that we must comply. The most basic principle would be the Michael Porter’s five competitive forces. Firstly‚ the most major force will be the rivalry among
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RYERSON UNIVERSITY DEPARTMENT OF PHYSICS LAB REPORT FOR PCS 211 SECTION ** EXPERIMENT: STATIC EQUILIBRIUM - FORCES AND TORQUES EXPERIMENTERS: ***** ********* ***** ********* AUTHORS OF THIS REPORT *** *** EXPERIMENT PERFORMED ON: *** REPORT SUBMITTED ON: *** INSTRUCTOR: *** PRE-LAB QUESTIONS: 1) What is meant by static equilibrium? The meaning of static equilibrium can be explored by first examining the definition of equilibrium. Equilibrium
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load (vertical). It resists the applied loading by a combination of internal transverse shear force and bending moment. An accurate analysis required in order to make sure the beam is construct without any excessive loads which affect its strength. A bending moment exists in a structural element when a moment is applied to the element so that the element bends. Moments and torques are measured as a force multiplied by a distance so they have as unit newton-metres (N·m). The concept of bending moment
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Title : Shear Force and Bending Moment Objective : To determine the shear force and bending moment when concentrated load‚ symmetrical load and non symmetrical load are applied Introduction The shear force (F) in a beam at any section‚ X‚ is the force transverse to the beam tending cause it to shear across the section. The shear force at any section is taken as positive if the right-hand side tends to slide downwards relative to the left hand portion. The negative force tends to cause
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one of the following relationships between T and P must be true? Ans) P= T+25N UNIT IS Newton(N) Question no 22) If you swing a bucket of water fast enough in a vertical circle‚ at the highest point the water does not spill out because an outward force balances the pull of gravity on the water. Ans) False Question no 23)Suppose a highway curve is properly banked to eliminate friction for a speed of 45 mph. If your tires were bald and you wanted to avoid sliding on the road‚ you would have to drive
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