3. Figure 3 shows a system consisting of wedge A and block B connected by an inextensible cable that runs around three pulleys. The mass of A is 12 kg and the mass of B is 3 kg. Due to the application of the constant force P = 40 N, wedge A moves to the right causing block B to move up on the wedge. The friction between the wedge A and the horizontal surface is negligible. The kinetic coefficient of friction between A and B is μ = 0.25. If the system is originally at rest (before P was applied), determine the accelerations of wedge A and block B immediately after P is applied. Also, calculate the tension in the cable. == Ans.: a=0.22 m/s² ; 20.3 N B H A 30° P=40 N Figure 3

3. Figure 3 shows a system consisting of wedge A and block B connected by an inextensible cable that runs around three pulleys. The mass of A is 12 kg and the mass of B is 3 kg. Due to the application of the constant force P = 40 N, wedge A moves to the right causing block B to move up on the wedge. The friction between the wedge A and the horizontal surface is negligible. The kinetic coefficient of friction between A and B is μ = 0.25. If the system is originally at rest (before P was applied), determine the accelerations of wedge A and block B immediately after P is applied. Also, calculate the tension in the cable. == Ans.: a=0.22 m/s² ; 20.3 N B H A 30° P=40 N Figure 3

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Section: Chapter Questions

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Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.

Question

3. <Problem Due> Figure 3 shows a system consisting of wedge A and block B connected by an
inextensible cable that runs around three pulleys. The mass of A is 12 kg and the mass of B is
3 kg. Due to the application of the constant force P = 40 N, wedge A moves to the right causing
block B to move up on the wedge. The friction between the wedge A and the horizontal surface is
negligible. The kinetic coefficient of friction between A and B is μ = 0.25. If the system is
originally at rest (before P was applied), determine the accelerations of wedge A and block B
immediately after P is applied. Also, calculate the tension in the cable.
Ans.: a=0.22 m/s² <; 20.3 N
B
A
30°
P=40 N
Figure 3

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