Concept and application of limiting friction, Mechanical Engineering

Assignment Help:

Concept and application of limiting friction:

Sol.: The maximum value of frictional force that comes into play, when the body just begins to slide over the surface of the other body, is called as limiting friction. Consider solid body which is placed on horizontal plane surface.

 

11_Concept and application of limiting friction.png

W = Weight of body acting through center of gravity downwards.

R = Normal reaction of body acting through center of gravity downwards.

P = Force acting on the body through center of gravity and parallel to the horizontal surface.
F = Limiting force of friction

If 'P' is small, the body will not move as the force of friction acting on the body in the direction opposite to 'P' will be more than 'P'. But if magnitude of 'P' goes on increasing a stage comes, when the solid body is on point of motion. At this stage, force of friction which is acting on body is called as LIMITING FORCE OF FRICTION (F).

R = W; F = P

If the magnitude of 'P' is increased further the body will start moving. The force of friction, acting on body is moving, is called as KINETIC FRICTION.


Related Discussions:- Concept and application of limiting friction

Bearing bronzes, Bearing Bronzes This is the copper-tin alloys along w...

Bearing Bronzes This is the copper-tin alloys along with small additions of another constitution. Beneath conditions of heavy load and conditions of severe service, bronzes ar

Som, Strain energy stored in a body due to impact load

Strain energy stored in a body due to impact load

Slip of belt, Slip of belt: Sol:   When the driver pulley rotates, it...

Slip of belt: Sol:   When the driver pulley rotates, it carries belt, because of a firm grip between its surface and belt. The firm between pulley and belt can be obtained by

Types of buildings required for plant, Q. Types of buildings required for P...

Q. Types of buildings required for Plant? The following types of buildings may be required: • Control rooms / Motor Control Centers (MCC) / Equipment rooms. • Electrica

Explain the scope of thermodynamics in thermal engineering, State the scope...

State the scope of thermodynamics in thermal engineering. Thermal engineering is a very significant associate branch of mechanical, chemical, environmental, aerospace, marine,

Define the term linear non-uniform soil pressure, Define the term linear no...

Define the term linear non-uniform soil pressure. See that the eccentric load on a column as in demonstrated figure also produces a similar effect. The linear non-uniform soil

Advantages of e-nrz over nrz, A modified NRZ code known as enhanced-NRZ (E-...

A modified NRZ code known as enhanced-NRZ (E-NRZ) operates on 7-bit words; inverting bits 2,3,6 and 7; and adding one parity bit to each word. The parity bit is chosen to make the

Determine the loss in fuel cost per hour, Give a neat and clean diagram of ...

Give a neat and clean diagram of Heavy water type "CANDU" nuclear power plant and illustrate its working. The incremental fuel costs for two generating units ‘a and b' of a powe

Evaluate the motion of the system, Evaluate the motion of the system: ...

Evaluate the motion of the system: If in above Example, the block A is resting on an inclined plane at 45 o to horizontal as illustrative in Figure, find out the motion of th

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