Calculations for the force to move a block, Mechanical Engineering

Assignment Help:

Calculations for the force to move a block:

Two blocks A and B having weight 4KN and 2KN respectively are in equilibrium position as shown in the figure given below. Coefficient of friction for both the surfaces is same as 0.25, make calculations for the force P which is required to move the block A.

1424_Calculations for the force to move a block1.png

Sol.: Considering equilibrium of the block B. Resolving force along with the horizontal and vertical directions:

 

2306_Calculations for the force to move a block2.png

 

Tcos30° -µRb = 0;

Tcos30° = µRb                                     ...(i)

Rb + Tsin30° - Wb = 0;

Tsin30° = Wb - Rb               ...(ii)

By dividing equation (i) and (ii), We get

tan30° = (Wb  - Rb)/µRb

0.5773 = (2- Rb)/0.25Rb;

0.1443Rb = 2- Rb

Rb = 1.748N

Fb = µRb = 0.25 × 1.748 = 0.437N

Considering equilibrium of block A: Resolving forces along horizontal and vertical directions,

1925_Calculations for the force to move a block.png


Related Discussions:- Calculations for the force to move a block

Explain the base of radial drilling machine, Explain the Base of radial dri...

Explain the Base of radial drilling machine The base of the drilling machine handles the entire machine and when bolted to the floor, gives for vibration-free operation and bes

Forces working on dam, Forces working on dam: Let a dam retaining wate...

Forces working on dam: Let a dam retaining water as illustrated in Figure (a). What are the forces working on it? Solution The forces working on dam are as follows:

Point and path function - thermodynamics, Point and Path Function - Thermod...

Point and Path Function - Thermodynamics: Poin t Function A point function is single valued function which always possesses a single - value is all states. For instance

Describe the elements of polyhedral objects, Describe the Elements of Polyh...

Describe the Elements of Polyhedral objects Objects that are often encountered in engineering applications can be classified as either polyhedral or curved objects. A polyhedr

Heat loss in acylindrical pipe, Ask question #Minimum 1. Research the topic...

Ask question #Minimum 1. Research the topic of heat loss in a cylindrical pipe. Explain which laws of physics are used to discuss heat loss in a pipe, and briefly explain how the f

Steam power plant , Steam power plant: Steam power plant converts heat...

Steam power plant: Steam power plant converts heat energy Q from combustion of fuel into mechanical work W of shaft rotation which is used to generate electricity. This ty

Define density of a System, Define density and specific volume. DENSITY...

Define density and specific volume. DENSITY (ρ) Density is illustrated as mass per unit volume; Density = mass/ volume; ρ = m/v, kg/m 3 P for Hg = 13.6 × 10 3 kg/m 3

Insulation on flanges and valves, Q. Insulation on Flanges and Valves? ...

Q. Insulation on Flanges and Valves? Valves, flanges, and unions shall not normally be insulated unless specified by OWNER. All other fittings are to be insulated. Fittings

How are the cutting fluids classified, (a) How are the cutting fluids class...

(a) How are the cutting fluids classified ? Explain every class with a couple of lines. (b) A carbide cutting tool has tool life exponent n = 0.27. It gives a tool life of 60 mi

Features of the scheme entrepreneurship development, Features of the Schem:...

Features of the Schem:  Features of the scheme are as follows : DIC is the primary registering centre. Registration is voluntary and not compulsory. Two types of

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