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Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Two blocks A and B, each having a mass of 5.5 kg , are connected by pins using the linkages shown. A В 0, 02 The coefficient of static friction between Block A and the floor is u A= 0.21. The coefficient of static friction between Block B and the floor is µB= 0.44. The angles given are 01 = 45 degrees 02 = 28 degrees Neglect the weight of the links. i. Draw the Free Body Diagrams for pin C, Block A, and Block B. ii. Applied force P on pin C is gradually raised. Which block starts slipping first and what is the value of P when slippage starts occurring? Hint: It helps to establish two cases, one in which block A slips and one in which block B slips, and then calculate what occurs in each case in order to determine what happens. Part A - Part A Draw the Free Body Diagram for link C. Note that for this problem we are looking at the starting location of the vectors. Draw the vectors starting at the gold dot at point C. The location of the starting point as well as the orientation of your vectors will be graded. The length will not.
Transcribed Image Text:Two blocks A and B, each having a mass of 5.5 kg , are connected by pins using the linkages shown. A В 0, 02 The coefficient of static friction between Block A and the floor is u A= 0.21. The coefficient of static friction between Block B and the floor is µB= 0.44. The angles given are 01 = 45 degrees 02 = 28 degrees Neglect the weight of the links. i. Draw the Free Body Diagrams for pin C, Block A, and Block B. ii. Applied force P on pin C is gradually raised. Which block starts slipping first and what is the value of P when slippage starts occurring? Hint: It helps to establish two cases, one in which block A slips and one in which block B slips, and then calculate what occurs in each case in order to determine what happens. Part A - Part A Draw the Free Body Diagram for link C. Note that for this problem we are looking at the starting location of the vectors. Draw the vectors starting at the gold dot at point C. The location of the starting point as well as the orientation of your vectors will be graded. The length will not.
Part D Force P is gradually raised until one of the blocks starts slipping. What is the largest value of P that can be applied to pin C of the linkage before any slipping occurs? Express your answer in units of N to three significant figures and include the appropriate units. Templates Symbols Slope/Displacement Vector uado redo' reset keyboard shortcuts help P = Submit Request Answer Part E - PartE When slipping is about to occur what is the friction force on Block A, otherwise known as FA? Express your answer in units of N to three significant figures and include the appropriate units. Templates Symbols Slope/Displacement Vector uado redo reset keyboard shortcuts help. FA= N Submit Request Answer Part F - Part F When slipping is about to occur what is the normal force on Block A, otherwise known as NĄ? Express your answer in units of N to three significant figures and include the appropriate units. Templates Symbols Slope/Displacement Vector uado redo reset keyboard shortcuts help. NA = N Submit Request Answer
Transcribed Image Text:Part D Force P is gradually raised until one of the blocks starts slipping. What is the largest value of P that can be applied to pin C of the linkage before any slipping occurs? Express your answer in units of N to three significant figures and include the appropriate units. Templates Symbols Slope/Displacement Vector uado redo' reset keyboard shortcuts help P = Submit Request Answer Part E - PartE When slipping is about to occur what is the friction force on Block A, otherwise known as FA? Express your answer in units of N to three significant figures and include the appropriate units. Templates Symbols Slope/Displacement Vector uado redo reset keyboard shortcuts help. FA= N Submit Request Answer Part F - Part F When slipping is about to occur what is the normal force on Block A, otherwise known as NĄ? Express your answer in units of N to three significant figures and include the appropriate units. Templates Symbols Slope/Displacement Vector uado redo reset keyboard shortcuts help. NA = N Submit Request Answer
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