Question

Why is sliding friction less than static friction? and why is rolling friction less than sliding friction?​

Answer 1

ANSWER - The term sliding friction refers to the resistance created by two objectssliding against each other. This can also be called kinetic friction. Sliding friction is intended to stop an object from moving.

The term sliding friction refers to the resistance created by two objectssliding against each other. This can also be called kinetic friction. Sliding friction is intended to stop an object from moving.Rolling resistance, sometimes calledrolling friction or rolling drag, is the force resisting the motion when a body (such as a ball, tire, or wheel) rolls on a surface.

The term sliding friction refers to the resistance created by two objectssliding against each other. This can also be called kinetic friction. Sliding friction is intended to stop an object from moving.Rolling resistance, sometimes calledrolling friction or rolling drag, is the force resisting the motion when a body (such as a ball, tire, or wheel) rolls on a surface.Hope It Helps You.

Answer 2

Answer:-

Friction is defined as the resistance offered by the surfaces that are in contact with each other when they move over each other. There are four types of friction:

• Static friction

• Sliding friction

• Rolling friction

• Fluid friction

Sliding friction

Sliding friction is defined as the resistance that is created between any two objects when they are sliding against each other. Following are the examples of sliding friction:

• Two cards sliding against each other in a deck
• Sliding of the block across the floor

Rolling friction

Rolling friction is defined as the force which resists the motion of a ball or wheel and is the weakest types of friction.

Following are the examples of rolling friction:

• Wheels of the moving vehicles
• Rolling of the log on the ground

Why rolling friction is less than sliding?

• The force of friction depends on the area of contact between the two surfaces.

• When an object slides, sliding friction is involved, while rolling friction is involved when an object rolls over the surface of another object.

• As the area of contact is less in the case of rolling than in the case of sliding, rolling friction is less than the sliding friction.

• Rolling friction is the resistance to motion experienced by a body when it rolls upon another. It is much less than sliding friction for the same pair of bodies.

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