Evaluate the angle - block impends down the plane, Mechanical Engineering

Assignment Help:

Evaluate the angle - block impends down the plane:

What should be value of the angle shown in the figure so that the motion of the 90N block impends down the plane? The coefficient of friction for entire surface = 1/3.

1329_Evaluate the angle - block impends down the plane.png

Sol.: Consider equilibrium of block 30N             

∑V = 0;                                                                      1403_Evaluate the angle - block impends down the plane1.png

R1  - 30cos θ  = 0,

R1 = 30cos                                 ...(i)

∑H = 0;

T - µR1 - 30sinθ   = 0,

T = 10cos θ  + 30sinθ           ...(ii)

Consider the equilibrium of block 90N

∑V = 0;

R2  - R1  - 90cos θ  = 0

R2 = 120cos                             ...(iii)

∑H = 0;

90sin θ  - µR1 - µR2 = 0,

90sin θ  = 10cos θ  + 40sinθ         ...(vi)

tanθ = 5/9 that is  θ = 29.050

 


Related Discussions:- Evaluate the angle - block impends down the plane

Compund cylinders, A compound cylinder is made by shrinkage one cylinder of...

A compound cylinder is made by shrinkage one cylinder of 120 mm external diameter and 20 mm wall thickness. The shrinkage allowance , based on radius , is 0.025 mm. If both cylinde

Define electro discharge machining, Define Electro Discharge Machining ...

Define Electro Discharge Machining In Electro-discharge machining (E.D.M) process the metal is removed from the work piece due to erosion caused by rapidly recurring spark

I-Section, An unsymmetrical I-Section as shown in figure below. If maximum ...

An unsymmetrical I-Section as shown in figure below. If maximum bending stress is not extend more than 40MPa in the section than find out the moment which it can bear

If crankshaft oil seal seating area found ok, If crankshaft oil seal seatin...

If crankshaft oil seal seating area found ok : Replace with a new oil seal and ensure the seal seats in the stator plate properly and while fixing the stator plate ensure using sta

Represent moment graphically - mechanics, Represent moment Graphically: ...

Represent moment Graphically: How you represent moment Graphically? Sol.: Consider force F which is represented in magnitude and direction, by   line AB . L

Shear stress, write the assumption made in derivetion of shear stress produ...

write the assumption made in derivetion of shear stress produced in circular shaft subjected to torsion

Alloy materials control, Q. Alloy materials control? All low alloy and ...

Q. Alloy materials control? All low alloy and high alloy equipment components including fittings, flanges and sections of pipe and all welds shall be individually tested by Ven

Explain the 3-2-1 principle of location, Explain the 3-2-1 Principle of Loc...

Explain the 3-2-1 Principle of Location A work piece can be positively located by means of 6 pins so positioned that collectively they restrict the work piece in nine of it

Explain Functions of springs as on following points, 1. store energy 2. app...

1. store energy 2. apply force on a body 3. balance force between two bodies 4. absorb vibrations of body

Couples, explain the properties of acouple

explain the properties of acouple

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