Question

define friction?
how many types of friction are there?​

Answer 1

friction=Friction is the force that opposes motion between any surfaces that are in contact. There are four types of friction: static, sliding, rolling, and fluid friction. Static, sliding, and rolling

Answer 2

Answer:

                                      DEFINATION OF  FRICTION

• the resistance to motion of one object moving relative to another is known as friction.

                                            TYPES OF FRICTION

There are 4 types of friction:-

• Static friction
• Sliding friction
• Rolling friction
• Fluid friction

→ Static friction :- The friction between two or more solid objects that are not moving relative to each other is known as static friction.

→  Sliding friction :- The friction that acts on objects when they are sliding over a surface is known as sliding friction . and it is weaker than static friction.

→ Rolling friction :- The force resisting the motion of a rolling body on a surface is known as rolling friction.

→ Fluid friction :- The force that restricts the movement either within itself or of another medium moving through the liquid is known as fluid friction.

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hope it helps :D