Evaluate the support required by body on plane, Mechanical Engineering

Assignment Help:

Evaluate the Support required by body on plane:

A body having weight 50KN rests in limiting equilibrium on rough plane, whose slope is 30º. The plane is raised to a slope of 45º; what force, applied to the body parallel to inclined plane, will support the body on plane.

Sol.: Consider When the slope of plane be 30° The sum of forces parallel to plane = 0

µ R - Wsin30° = 0                                                                                                                                      ...(i)

The sum of forces perpendicular to plane = 0

R - Wcos30° = 0

R = Wcos30°                                                                                                                      ...(ii)

Putting value of R in equation (i) We get

µ = tan30º = 0.577                                                                                                         ...(iii)

796_Evaluate the Support required by body on plane.png

Now consider the case when slope is 45°, Let Force P required for supporting the body. In this case

The sum of forces parallel to plane = 0

P - µR - Wsin45° = 0                                                                                                                                   ...(iv)

The sum of forces perpendicular to plane = 0

R - Wcos45° = 0

R = Wcos45°                                                                                                                       ...(v)

Putting value of R in the equation (iv) we get

P = µWcos45° - Wsin45°

P = 15.20KN                                                                               .......ANS

 


Related Discussions:- Evaluate the support required by body on plane

Robotic and manufacturing automation, Consider the robotic manipulator of F...

Consider the robotic manipulator of Fig. 1, with a Revolute and a Prismatic Joint. Figure 1, shows the side view of the manipulator while figure 2. shows the top view of the manipu

Compressor, why does pressure and temperature rise after the process of com...

why does pressure and temperature rise after the process of compression

Determine the maximum shear stress, Determine the maximum shear stress: ...

Determine the maximum shear stress: A beam of triangular cross section of base width 120 mm & height 80 mm is subjected to a shear stress force of 3 kN. Determine the maximum

Explain the conventional frame, Show schematic diagram showing the layout o...

Show schematic diagram showing the layout of transmission system of four-wheel driven car. Explain briefly the following types of frame: (a) Conventional frame (b) Integra

Flight of the bumblebee, Flight of the Bumblebee Railroad train T a le...

Flight of the Bumblebee Railroad train T a leaves station A at a uniform speed of 30mph toward station B. Train Tb leaves station B at a uniform speed of 20mph toward station

Preliminary layout considerations, Q. Preliminary layout considerations? ...

Q. Preliminary layout considerations? This section outlines the key aspects to be considered when preparing preliminary layouts during the evaluate phase. Preliminary layouts a

Determine the number of cycles - crack propagation, Determine the number of...

Determine the number of cycles - crack propagation: The plate of above Example  contained a crack of 50 mm length in the centre before it was subjected to cyclic stress. Deter

Joint preparation and identification, The joint bevels shall be prepared in...

The joint bevels shall be prepared in accordance with the registered and approved weld procedure. Internal and external surfaces to be welded shall be clean and free from paint, o

Determine for water flow rate, A counter flow heat exchanger is used to coo...

A counter flow heat exchanger is used to cool 2000kg/hr of oil(Cp= 2.5 KJ/Kg K) from 105 o C to 30 o C by the use of water entering at 15 o C. If the overall heat transfer coeff

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

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