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

Three particle system, Three Particle System Suppose we have two partic...

Three Particle System Suppose we have two particles of masses  m 1  and  m 2   already fixed in space at distance  r 12  from each other. Let us bring in a third particle of

Explain the working and construction of universal joint, (a) Describe clear...

(a) Describe clearly the constructional details and operation of various rear axle drives with the engine placed at the front. Illustrate your answer with simple and neat sketch.

Safety from corrosive chemicals, Q. Safety from Corrosive Chemicals? Sa...

Q. Safety from Corrosive Chemicals? Safety showers and eyewash stations shall be provided in areas where corrosive chemicals are stored and handled. They should be located so t

Find out the amount of energy spent, Find out the amount of energy spent: ...

Find out the amount of energy spent: 6 cubic metre of water is to be lifted to a height of 40 metres and delivered having velocity of 4 metres/sec. If this operation takes 12

Cement, wet process of portland cement

wet process of portland cement

FEM ANSYS Assignment, have assignment in FEM calculation and ANSYS are you ...

have assignment in FEM calculation and ANSYS are you able to solve this kind of assignment

Frames, Frames: You have been introduced to the analysis of frames. By...

Frames: You have been introduced to the analysis of frames. By going through this unit, you may identify frames and differentiate them from trusses. The method for analyzing f

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

Details of rolling process,Different rolling methods,

For elevated temperatures, For Elevated Temperatures, Other Materials  ...

For Elevated Temperatures, Other Materials  High temperature creep is a significant phenomenon to be guarded in various machines like gas turbines, missiles, reentry vehicles a

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