Evaluate the motion of system, Mechanical Engineering

Assignment Help:

Evaluate the motion of system:

Q : Block A and B are connected by a rigid horizontally bar planed at each end are placed on the inclined planes as shown in the figure given below. The weight of block B is 300N. Find the limiting values of weight of the block A to just start motion of system.

 

887_Evaluate the motion of system.png

Sol.: Let Wa be weight of block A. Consider free body diagram of B. As shown in the figure. And Assume that AB  be the Axis of reference.

∑V = 0;

Rsin45° - µBRcos45° - 300 = 0

On solving,                                R = 606.09N           ...(i)

∑H = 0;

C - RCos45° - µBRsin45° = 0                        ...(ii)

Putting value of R, we get

C = 557.14N           ...(iii)

Where C is reaction imparted by rod.

Consider free body diagram of block A as shown in the figure

1084_Evaluate the motion of system1.png

Figure

C + µARcos60° - Rcos30° = 0                                                                      ...(iv)

By putting all the values we get

R = 751.85N                                                                                                  ...(v)

∑V = 0;

µ ARsin60° + Rsin60° - W = 0

By solving,

W = 538.7N

 

...(vi)

Thus weight of block

A = 538.7N

.......ANS

 

 


Related Discussions:- Evaluate the motion of system

Beams, a beam ABC is simply supported at A and C and caries a couple equal ...

a beam ABC is simply supported at A and C and caries a couple equal to 100kN applied clockwise at B

Thermodynamics, What is the concept of continuum? How will you define densi...

What is the concept of continuum? How will you define density and pressure using this concepts

Brittle material, hello. what is the shape of the fractur of brittle materi...

hello. what is the shape of the fractur of brittle material after applied th tensil test.

Determine range of diameter of the copper core, A copper-silver bimetallic ...

A copper-silver bimetallic wire, 1 cm in diameter, is prepared by co-extrusion with copper as the core and silver as the outer layer. The desired properties along the axis parallel

Define the basic components of an n.c system, Define the Basic Components o...

Define the Basic Components of an N.C System The basic components of an N.C system are as follow: a) Programmer of Instruction: - It is a set of direction which will tell th

Process planning, we have to design crane we did already with calculation r...

we have to design crane we did already with calculation remaining is process planning

Determine normal force exerted on the plate, A 50 mm dia. jet having a velo...

A 50 mm dia. jet having a velocity of 18 m/sec. impinges without shock on a flat plate inclined at an angle to the axis of jet. If the plate is moving at 5 m/sec in the direction o

Define the boundary representation of solids, Define the Boundary Represent...

Define the Boundary Representation of solids Boundary model or b-rep model is based on the topological notion that a physical object is bounded by a set of faces. These faces a

Calculate the time required to complete the job, Five jobs are performed fi...

Five jobs are performed first-on Machine-I and then on Machine-II. Time in hours taken by each job on each machine is given below :

Calculate days of inventory, Calculate days of inventory: From the dat...

Calculate days of inventory: From the data provided in table 1 and 2, calculate days of inventory. Solution Average Inventory Investment = (Last year inventory + Curre

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