What is the difference between sliding and rolling and kinetic and static friction?

Answer 1

Sliding friction is the friction between the body and the surface on which the body is sliding. Static friction however, is the friction when the body isn't moving when you aply force to it. The force of static friction is the same as the force you are pushing the body UNTIL it moves!..It's a fact that the static friction coefficient is a bit bigger than the sliding friction coefficient.

Answer 2

question in wrong....... sliding friction is always greater than static friction........

I don't agree with the person above.

The force required to move an object, overcoming friction the instant the object starts moving from rest is a measure of static friction. However, the force required to keep a moving object in the same speed is a measure of sliding friction.

Sliding friction is less then static friction because it takes more energy to move an object at rest than it is to move an object that is already moving.

Answer 3

Sliding Friction is less than static friction because The object is already in motion so it is easier to keep the object in motion meanwhile for the case of static friction The object is at rest so we must put in more force to get the object to start moving.

Answer 4

Static friction. This is why many cars now have anti-lock braking systems. The ABS prevents the wheels from locking up and sending the car sliding. A sliding car is much more difficult to control and slow down.

Answer 5

Sliding friction is the normal kind of friction which all objects are subjected to slowed by according to the equation

friction = μFn

μ= the coefficient of friction

Fn= the normal force

Rolling friction is what causes the rotation of round objects when in contact with a surface. When a round object is in motion, friction brings the part that is in contact with the surface to a stop for one instant which causes the object to rotate and consequentially roll forward.

For example consider how a car moves:

the engine generates torque, which starts the wheel rotating. Friction then generates a forward force by slowing the part of the wheel in contact with the ground.

Answer 6

Static friction is the force that must be overcome in order to initiate the object's motion, ie. to start the object moving. Sliding, or Kinetic (moving) friction is the force that resists the object's motion , ie. it slows the object down if it's already moving. Generally, Static friction is a higher value than kinetic friction, ie. pushing an already moving object is easier than pushing a still object

Answer 7

kinectic friciton is when an object is moving. static friction is to calculate the force needed to get the object in motion.

Answer 8

Sliding friction is always less than the static friction by small amount.

Answer 9

Static friction is usually stronger than dynamical friction.

Answer 10

Static friction