0
They are both forms of friction. rolling friction occurs because two objects are rubbing against each other. under a microscope you would see that the two objects have bumps and these bumps run into each other, causing both objects to change velocity. thus rolling friction resists the relative motion of two objects. however, static friction occurs when two objects are pressed against each other and they have the same velocity, the microscopic bumps have time to sink in to each otherand creates a better grip than rolling friction. thus static friction resists any relative motion between two objects and is the reason why pushing a car is sudenly easier when it has some motion.
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
What is the Meaning of tractive force?
Tractive force is 'static friction'. Like the friction experienced between your car tyres and the road when accelerating from a stand-still.
Methods to reduce friction?
There are two most widely used methods to reduce friction__Using lubricants.Converting Sliding Friction into Rolling Friction
How does rubber soles reduce friction?
rubber has so much friction ,because it is appling static friction. 6th grade student
Why does a rolling ball stop rolling?
Friction translates lateral motion to rolling motion, but it can slow down a rolling ball because it opposes the motion of the ball's lower surface to do so. This removes momentum from the ball.When a ball combines rotational and translational motion (rolls), friction acts in the opposite direction of the motion. This in turn should produce a torque by the frictional force i.e,[u.m.g*R] where R=radius of sphere , u = co-efficient of friction. The torque produced should increase the angular acceleration and therefore the body should rotate with greater speed, but as we know, the rolling sphere stops after a certain time.REASON: When a sphere rolls, the surface in contact with the sphere is depressed and the surface just in front of it is raised. So when the rolling sphere strikes this raised surface, the normal reaction instead of passing from center of mass passes through a little bit away in the forward direction of the motion. Therefore the torque produced by this is greater than the torque produced by the frictional force, and opposes the motion of the body until it comes to rest.
What is maglev?
"magnetic" "levitation" A cute way to make trains float - thus reducing rolling friction, but NOT air friction.
What is the difference between static and rolling friction?
static is standing still, and rolling is movement. static is the friction that prevents the object from moving, rolling is the friction that slows down the object while it is motion.
Does static friction or rolling friction causes a car tire to turn on the road?
static friction
Is sliding friction greater than rolling friction?
Typically not. However rolling friction is somewhat of a myth. Rolling friction is actually caused by static friction. There are really only two types of friction: Static and Kinetic. That's it! Rolling friction is caused by static friction and the coefficient of friction (which determines its strength) is dependent upon the two materials of interaction.
Which friction has least value option sliding friction static friction rolling friction Air friction?
i think it it rolling friction
What the 3 types of friction?
Kinetic, Static, and Rolling Friction
Does a ball rolling down a hill cause static friction?
Friction is one force causes a ball to roll downhill. The smaller the static friction coefficient, the more liable the ball will be to skidding instead of rolling. Static friction is involved in a ball rolling downhill.
What are types of friction?
There are 2 types of frictions: 1. Rolling friction 2. Static friction 3. Fluid friction
What friction keeps a wagon from rolling until it is pushed?
Static Friction
Is the friction of the wagon moving down the hill static?
The friction is rolling.
What are the four types of friction?
static, rolling, fluid, and sliding friction
What are the three types of friction and when does each apply?
There are three types of friction, static friction, rolling friction, and sliding friction. Static friction is friction between two surfaces that aren't moving relatively to each other. Rolling friction is friction between a rolling object and the surface that it is rolling on. Sliding friction is friction where an object slides, or rubs against, another surface.
What type of friction is important for walking?
Well it is either static friction or rolling friction
