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 principal process for electro chemical machining, Explain Principal...

Explain Principal Process for Electro Chemical Machining It is also called electrolytic machining or anodic cutting. This process is quite commonly used for shaping har

Determine the best possible angle to reduce aerodynamic drag, This is to de...

This is to determine the best possible angle to reduce aerodynamic drag. Mesh is to use tetrahedron of 0.5m wide.  I need the mesh generation and solver control on ansys 11.0. I al

Statics, what are the applications of statics in engineering

what are the applications of statics in engineering

Plastic material and rigid plastic material, Plastic material and rigid pla...

Plastic material and rigid plastic material: For the plastic material, there is stress at which plastic deformation begins. A rigid plastic material is one in which the ela

Clutch cable model-Clutch Complaint, Clutch cable model: Ensure the cables...

Clutch cable model: Ensure the cables fitted are of the respective model and not interchanged with other model. Also ensure that the cable is genuine.

Calculate pressure on each side of spherical ball , Calculate pressure on e...

Calculate pressure on each side of spherical ball : Heavy spherical ball of weight W rests in V shaped trough whose sides are inclined at the angles and to the horizontal

Explain the concept of time dilation, Explain the concept of time dilation....

Explain the concept of time dilation. Describe experimental verification of time dilation. Explain: (i) Length contraction (ii) Time Dilation in STR What are proper length an

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