give examples to show that friction is both friend and evil
Answers
Answered by
29
due to the frictional force we can walk ,write,hold the objects etc so frictional force is a friend wear and tear of machine parts,slipping on a smooth road are also due to frictional force .so it can be considered as evil
Answered by
33
friction is advantageous in the following ways:
1.walking in the floor
2.nails are held in the wall
3.helps fingers to hold a pen
4.vehicles move on the road
5.mechanical power transmission of belt-drive
disadvantages of friction:
1.large amount of power loss in engines
2.wear and tear of machines increases reducing their life
3.causes unnecessary heating if machine parts thereby causing malfunctioning
1.walking in the floor
2.nails are held in the wall
3.helps fingers to hold a pen
4.vehicles move on the road
5.mechanical power transmission of belt-drive
disadvantages of friction:
1.large amount of power loss in engines
2.wear and tear of machines increases reducing their life
3.causes unnecessary heating if machine parts thereby causing malfunctioning
Similar questions