Thinking Like an Engineer: An Active Learning Approach (3rd Edition)
3rd Edition
ISBN: 9780133593211
Author: Elizabeth A. Stephan, David R. Bowman, William J. Park, Benjamin L. Sill, Matthew W. Ohland
Publisher: PEARSON
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Chapter 3, Problem 8MDP
To determine
Show that the forces can be resolved into horizontal and vertical components.
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Chapter 3 Solutions
Thinking Like an Engineer: An Active Learning Approach (3rd Edition)
Ch. 3.4 - We often express criteria in terms that are not...Ch. 3 - 1. Prove the law of the lever.Ch. 3 - Demonstrate conservation of energy (potential...Ch. 3 - Determine the coefficient of static and sliding...Ch. 3 - 4. Prove that the angle of incidence is equal to...Ch. 3 - Prob. 5MDPCh. 3 - Prob. 6MDPCh. 3 - Prob. 8MDPCh. 3 - Find the center of gravity of an irregular piece...Ch. 3 - 10. Show that for circular motion, force = mass ...
Ch. 3 - Prob. 11MDPCh. 3 - Measure the effective porosity of a sand sample.Ch. 3 - Prob. 13MDPCh. 3 - 14. Prove Hookes law for a spring.Ch. 3 - Prob. 15MDPCh. 3 - Prob. 16MDPCh. 3 - Prob. 18MDPCh. 3 - Prob. 19MDPCh. 3 - 21. Relate the magnetic strength to the radius.Ch. 3 - Determine the density and specific gravity of a...Ch. 3 - Determine the thickness of a specified coin or a...Ch. 3 - Prob. 26MDPCh. 3 - What is the volumetric flow rate from your shower?
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- How do I know which forces are positive and which are negative? How am I supposed to know which forces are under compression or tension?arrow_forwardAnswers: (a) F1= 36.1 N; (b) a= 43.9°; (c) F2 16.8 N; (d)= 65.7 %3D %3D Problem 2.5 Consider four forces F, F2, F3, and F4 shown in Fig. 2.19. Assume that these forces are applied on an object in the xy-plane. The first, second, and third forces have a magni- tude of F = 32 N, F2 = 45 N, and F3 = 50 N, respectively, and they make angles a = 35°, B = 32°, and y = 50° with the posi- tive x axis. The force F4 has a magnitude F4 55 N and its line of action makes an angle 0 = 65° with the negative x axis. F2 %3D %3D F1 (a) Calculate the scalar components of the resultant force vector ER (b) Calculate the magnitude FR Oof the resultant force. (c) Calculate an angle z that the resultant force vector FR makes with the horizontal. Fig. 2.19 Problem 2.5 Answers: (a) FRE 73.3 N, FRy = 93.5 N; (b) FR = 118.8 N; (c)r 51.9 Problem 2.6 As illustrated in Fig. 2.20, consider a 2 kg, 20 cmarrow_forwardFind the unkown forces (including reactions and tensions) and moments!arrow_forward
- How would you compare the accuracy of the graphical (polygon) method and experimental (force table) method of determining the resultant of several forces? Explain thoroughlyarrow_forwardWhat you will find by applying Composition of forces for a system of forces acting on a body? Select one: Resolution of forces Siding Forces Composition of forces Resultant of forcesarrow_forwardA square plate (4 m on each side) is fixed from a pivot point and can rotate around this point. The point is located on the top right corner of the square. Each of the three forces applied (one on the top, 3 N, one on the left side, 1 N, and one on the bottom, 5 N) are applied perpendicular to their respective side. Find the total torque applied by the given forces and state which direction the plate will rotate.arrow_forward
- A 50.0 cm, uniform, 60.0 N shelf is supported horizontally by two vertical wires attached to the sloping ceiling. A very small 15.0 N tool is placed on the shelf midway between the points where the wires are attached to it. Find the tension in the left-hand wire. Find the tension in the right-hand wire.arrow_forwardQ2. A shaft is supported by two bearings placed 1.2 m apart. A pulley of diameter De meter is mounted at a distance of 300 mm to the right of left hand bearing and this drives a pulley directly below it with the help of belt having maximum tension of 2.25 kN. Another pulley of diameter Da meter is placed 200 mm to the left of right hand bearing and is driven with the help of electric motor and belt, which is placed horizontally to the right. The angle of contact for both the pulleys is 180° and µ = 0.24. Determine the suitable diameter for a solid shaft, allowing working stress of 63 MPa in tension and 42 MPa in shear for the material of shaft. ASsume that the torque on one pulley is equal to that on the other pulley. ( Refer the text book link given via moodle. Follow Example 14.9).-arrow_forward5.31a shows a student pulling horizontally with a 100 N force on a rope that is attached to a wall. In 5.31b, two students in a tug-of-war pull on opposite ends of a rope with 100 N each. Is the tension in the second rope larger than, smaller than, or the same as that in the first?arrow_forward
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