Friction
description
Transcript of Friction
![Page 1: Friction](https://reader036.fdocuments.in/reader036/viewer/2022062513/55508e32b4c905235b8b4fba/html5/thumbnails/1.jpg)
![Page 2: Friction](https://reader036.fdocuments.in/reader036/viewer/2022062513/55508e32b4c905235b8b4fba/html5/thumbnails/2.jpg)
Objectives: To introduce the concept of dry friction To understand how dry friction works
Learning Outcomes:At the end of this session, student should be
able to: Briefly define what is friction Sketch a basic free-body diagram of a
normal friction
![Page 3: Friction](https://reader036.fdocuments.in/reader036/viewer/2022062513/55508e32b4c905235b8b4fba/html5/thumbnails/3.jpg)
Definition:
“..a force of resistance acting on a body which prevents or retards slipping of the body relative to a second body or surface with which it is in contact”
![Page 4: Friction](https://reader036.fdocuments.in/reader036/viewer/2022062513/55508e32b4c905235b8b4fba/html5/thumbnails/4.jpg)
Types of friction: Fluid friction Dry friction √
Law of Dry friction:“..occurs between the contacting surfaces of
bodies in the absence of lubricating fluid”
![Page 5: Friction](https://reader036.fdocuments.in/reader036/viewer/2022062513/55508e32b4c905235b8b4fba/html5/thumbnails/5.jpg)
Characteristics of dry friction: Acts tangent to contacting surfaces In a direction opposed to the relative
motion In absence of lubricating fluid
![Page 6: Friction](https://reader036.fdocuments.in/reader036/viewer/2022062513/55508e32b4c905235b8b4fba/html5/thumbnails/6.jpg)
SUMMARY Q & A