Compute minimum value of the horizontal force, Mechanical Engineering

Assignment Help:

Compute minimum value of the horizontal force:

Block A of weight 520N rest on horizontal top of block B having weight of 700N as shown in the figure given below. Block A is tied to support C by cable at 300 horizontally. The coefficient of friction is 0.4 for all the contact surfaces. Compute minimum value of the horizontal force P only to move the block B. How much is the tension in cable then. 

353_Compute minimum value of the horizontal force.png

Sol.: Consider First free body diagram of block A

∑H = 0

µR1 = Tcos30°

0.4R1 = 0.866T

R1 = 2.165T                                                                                                                           ...(i)

∑V = 0

W = R1 + Tsin30°

520 = 2.165T + 0.5T

520 = 2.665T

T = 195.12N                                                                                                                       ...(ii)

Putting in equation (i) we get

R1 = 422.43N                                                                                                                      ...(iii)

Consider First free body diagram of block A

∑V = 0

R2 = R1  + WB

R2 = 422.43 + 700

R2 =1122.43N                                                                                                                     ...(iv)

∑H = 0

P = µR1 + µR2

P = 0.4(422.43 + 1122.43)

P = 617.9N                                                  .......ANS


Related Discussions:- Compute minimum value of the horizontal force

Design layout of storage tanks in plant, Q. Design layout of Storage Tanks ...

Q. Design layout of Storage Tanks in plant? Generally, tanks taking up large areas of the plot are located off-site and storage tanks containing the same product grouped togeth

What will be the alteration of pressure, A copper tube 1.2 m long, has 80mm...

A copper tube 1.2 m long, has 80mm internal diameter and 2 mm wall thickness. It has closed ends, and is filled with water under pressure. What will be the alteration of pressure i

Manufacturing technology, Details of rolling process,Different rolling meth...

Details of rolling process,Different rolling methods,

Boundary work assingment, A system consisting of 2kg of R-134a undergoes a ...

A system consisting of 2kg of R-134a undergoes a cycle composed of the following processes: Process 1-2: constant volume from P1= 10 bar, x1=0.6 to saturated vapor. process 2-3 con

#title.If your requirement is for a sensor suitable for a he, Ask question ...

Ask question #Minimum 100 words acceptedIf your requirement is for a sensor suitable for a heavy industrial application, with a linear characteristic, working in temperatures up to

Explain the end cutting edge angle, Explain the End Cutting Edge Angle ...

Explain the End Cutting Edge Angle It is an angle between the face of the tool and the plane perpendicular to side of shank. It acts as relief angle that is allows only small s

Calculate the angle of heel, a) Derive a mathematical expression for stabil...

a) Derive a mathematical expression for stability of an automobile while accelarating in a curved path? b) A motorcycle and its rider together have a mass of 250Kg and their cen

Design pumps for plant layout, Q. Design Pumps for plant layout? Pumps ...

Q. Design Pumps for plant layout? Pumps handling flammable or combustible materials are relatively frequent sources of leakage and should therefore be located as far as practic

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd