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

Advantages of two stroke engine over a four stroke engine, Advantages of tw...

Advantages of two stroke engine over a four stroke engine: The advantages of two stroke engine over a four stroke engine are stated below: 1. A two stroke engine has twice

Fricion, what force will be neccesary to just maintain a body at equilibriu...

what force will be neccesary to just maintain a body at equilibrium in a body weighing 914.5kg along the horizontal plane

What are the two ways of pile foundation, What are the two ways of pile fou...

What are the two ways of pile foundation Pile foundations can be installed in two ways. Timber, steel and precast concrete piles, are driven from the ground using hammers till

MOS, limitations of euler''s theory

limitations of euler''s theory

Kinematics equations, Kinematics Equations Kinematics deals with problem...

Kinematics Equations Kinematics deals with problems involving distance, velocity, time and constant acceleration. The restraint that acceleration is a constant for these problem

Illustrates the effect of wall movement on earth pressure, Illustrates abou...

Illustrates about the effect of wall movement on earth pressure? Effect of wall movement on earth pressure About fifty years ago Terzaghi conducted a series of tests on larg

Pliers tool and equipment , Pliers: Pliers are used just for gripping or w...

Pliers: Pliers are used just for gripping or wire cutting and should never be used as substitute for spanners. The following types of plier are used : (a) Side cutting pliers

Explain the function phase of radial drilling machine, Function Phase: ...

Function Phase: Steps: 1. To identify the functions. To identify the functions regarding to the problem in radial drilling machine. Our project focus on the create an a

Optimization, consider the following LPP max z=9x1+8x2+5x3 subject to 2x1+3...

consider the following LPP max z=9x1+8x2+5x3 subject to 2x1+3x2+x3 5x1+4x2+3x3 x1,x2,x3>_0 (a)solve using simlex method (b)hence using the sesitivity analysis

Safety in tig welding-gaseous and metal fumes hazards, SAFETY IN TIG WELDIN...

SAFETY IN TIG WELDING-Gaseous and Metal Fumes Hazards The major toxic gases associated in TIG welding are ozone, nitrogen dioxide and phosgene gas. Metal fumes are also produced

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