FRICTION AND ITS TYPES.pptx

FRICTION AND ITS TYPES

1. TOPIC : FRICTION PRESENTED BY : PUNAM PRADHAN

2. MEANING OF FRICTION Whenever one body moves, or tends to move across the surface of another, force is generated. F orce of friction always acts parallel  to th e surface of contact but in opposite direction.     “ F riction may be defined as a force that oppose the motion”.

3. STATIC FRICTION SLIDING FRICTION ROLLING FRICTION FLUID FRICTION

4. FACTORS DECIDING FRICTION Type of s urface. Friction is proportional to the weight & force pressing two surface together. ( Heavier the body more will be friction – Vice versa) Area of contact

5. COEFFICIENT OF FRICTION(C)

6. Let’s test your knowledge…. Q. If force applied by one body over another is 50N and weight of the body is 40N ,then find the coefficient of friction ? Ans: 1.25

7. THANKYOU!!