Two blocks A and B, each having a mass of 7 kg , are connected by pins using the linkages shown. B А 02 01 C The coefficient of static friction between Block A and the floor is µ = 0.2. The coefficient of static friction between Block B and the floor is µR = 0.41. The angles given are O = 45 degrees O2 = 25 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.

International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
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Chapter7: Dry Friction
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• Part G - Part G
When slipping is about to occur what is the friction force on Block B, otherwise known as FB?
Express your answer in units of N to three significant figures and include the appropriate units.
Vol A£o n vec
?
FB =
N
Submit
Request Answer
Part H - Part H
When slipping is about to occur what is the normal force on Block B, otherwise known as Ng?
Express your answer in units of N to three significant figures and include the appropriate units.
Hνα ΑΣφ
?
vec
NB =
N
Submit
Request Answer
Transcribed Image Text:• Part G - Part G When slipping is about to occur what is the friction force on Block B, otherwise known as FB? Express your answer in units of N to three significant figures and include the appropriate units. Vol A£o n vec ? FB = N Submit Request Answer Part H - Part H When slipping is about to occur what is the normal force on Block B, otherwise known as Ng? Express your answer in units of N to three significant figures and include the appropriate units. Hνα ΑΣφ ? vec NB = N Submit Request Answer
Two blocks A and B, each having a mass of 7 kg , are connected by pins using the linkages shown.
В
А
02
01
C
The coefficient of static friction between Block A and the floor is HA = 0.2.
The coefficient of static friction between Block B and the floor is µB = 0.41.
The angles given are
01 = 45 degrees
02 = 25 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.
Transcribed Image Text:Two blocks A and B, each having a mass of 7 kg , are connected by pins using the linkages shown. В А 02 01 C The coefficient of static friction between Block A and the floor is HA = 0.2. The coefficient of static friction between Block B and the floor is µB = 0.41. The angles given are 01 = 45 degrees 02 = 25 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.
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