Question

what are the three types of friction and explain the three types of friction

even tell about advantages and disadvantages of friction

a 25 points question​

Answer 1

Answer:

Static, sliding, and rolling friction occur between solid surfaces.

STATIC FRICTION-

• Static friction is friction between two or more solid objects that are not moving relative to each other. For example, static friction can prevent an object from sliding down a sloped surface. The coefficient of static friction, typically denoted as μs, is usually higher than the coefficient of kinetic friction. Static friction is considered to arise as the result of surface roughness features across multiple length-scales at solid surfaces. These features, known as asperities are present down to nano-scale dimensions and result in true solid to solid contact existing only at a limited number of points accounting for only a fraction of the apparent or nominal contact area. The linearity between applied load and true contact area, arising from asperity deformation, gives rise to the linearity between static frictional force and normal force, found for typical Amonton-Coulomb type friction.

SLIDING FRICTION

• Sliding friction (also called kinetic friction) is a contact force that resists the sliding motion of two objects or an object and a surface. Sliding friction is almost always less than that of static friction; this is why it is easier to move an object once it starts moving rather than to get the object to begin moving from a rest position.

ROLLING FRICTION

• Rolling resistance, sometimes called rolling friction or rolling drag, is the force resisting the motion when a body (such as a ball, tire, or wheel) rolls on a surface.Another cause of rolling resistance lies in the slippage between the wheel and the surface, which dissipates energy.

• ADVANTAGES OF FRICTION

Friction plays a vital role in our daily life. Without friction we are handicap.

1. It is becomes difficult to walk on a slippery road due to low friction. When we move on ice, it becomes difficult to walk due to low friction of ice.

2. We can not fix nail in the wood or wall if there is no friction. It is friction which holds the nail.

3. A horse can not pull a cart unless friction furnishes him a secure Foothold.

4. We can write on a paper or on a board.

5. Friction helps in applying the brakes.

6. It helps in walking on floor.

7. Coffee mug stays on the dashboard

8. Shuffling across a carpet to shock someone

9. Draging of atmosphire with earth is possible

10. Helps to pevents the life on earth by burning astroids.

• DISADVANTAGES OF FRICTION

Despite the fact that the friction is very important in our daily life, it also has some disadvantages like:

1. The main disadvantage of friction is that it produces heat in various parts of machines. In this way some useful energy is wasted as heat energy.

2. Due to friction we have to exert more power in machines.

3. It opposes the motion.

4. Due to friction, noise is also produced in machines.

5. Due to friction, engines of automobiles consume more fuel which is a money loss.

6. Machine efficency is decreased: energy input is lost to heat

7. Getting shocked by doorknobs

8. Rug burn

9. It counteracts movement and so it takes more energy to move, it can cause unwanted heat (e.g. in machine parts), and it wears things out like shoes.

10. Forest fires are caused due to friction between branches of trees

HOPE THAT HELPED

PLZ

PLZ

PLZ

PLZ

FOLLOW ME

HAVE A GREAT DAY.....

MARK THIS BRAINLIEST

THANK IT....

BYE♡♡♡

Answer 2

ᴛʏᴘᴇs ᴏғ ғʀɪᴄᴛɪᴏɴ:-

• sliding
• Static
• rolling friction

ᴇxᴘʟᴀɴᴀᴛɪᴏɴ:-

1. STATIC FRICTION:- Static friction is a force that keeps an object at rest. It must be overcome to start moving the object
2. SLIDING FRICTION:- The term sliding friction refers to the resistance created by two objects sliding against each other. This can also be called kinetic friction.
3. ROLLING FRICTION:- Rolling resistance, sometimes called rolling friction or rolling drag, is the force resisting the motion when a body rolls on a surface.

ᴀᴅᴠᴀɴᴛᴀɢᴇs ᴀɴᴅ ᴅɪsᴀᴅᴠᴀɴᴛᴀɢᴇs ᴏғ ғʀɪᴄᴛɪᴏɴ:-

ᴀᴅᴠᴀɴᴛᴀɢᴇs ᴏғ ғʀɪᴄᴛɪᴏɴ:-

The force of friction acts in the opposite direction that the object is moving, so friction slows down the motion of moving objects.

ᴅɪsᴀᴅᴠᴀɴᴛᴀɢᴇs ᴏғ ғʀɪᴄᴛɪᴏɴ:-

The main disadvantage of friction is that it produces heat in various parts of machines. In this way some useful energy is wasted as heat energy.

нσpε

¡т

нεłpร

Follow back bro..... did a lot of effort to make this answer attractive :-(