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What are Different between static friction and sliding friction and rolling friction?
Friction is a force between to surfaces that resists motion. Static friction is the resistance to motion when two surfaces are not moving relative to each other. Sliding friction is the resistance to motion when two surface are sliding, one over the other. Sliding friction is less than static friction for the same two surfaces. For rolling friction an object is rolling, like a tire on a road. It's what provides traction between the two and makes the car "go." For a tire on a road, rolling friction is less than sliding friction.
Put static sliding and rolling friction in order of increasing strength?
i have that same question on my homework on a lab we are doing!
What is normally greater static friction or sliding friction on the same object?
Static friction is typically greater than sliding friction on the same object. Static friction is the force that must be overcome to start an object moving, while sliding friction is the force that resists the motion of an object already in motion.
Is static friction stronger than rolling and sliding friction?
It had better be! Otherwise, nothing could ever start sliding ... as soon as yourpull on the string becomes strong enough for the object to break free of thestatic friction and begin to slide, the force of kinetic friction would take over,and it would suddenly be even stronger!
Why is rolling friction is lesser than sliding friction?
Rolling friction is generally lower than sliding friction because when an object is rolling, only the point of contact is experiencing friction, while in sliding friction, the entire surface of contact is experiencing friction. In rolling, the point of contact continually changes, reducing the resistance to motion compared to sliding where the contact surface remains the same.
What is the difference with static friction and kinetic friction?
static friction is the friction between two bodies they are in contact. And another sliding over the other. Kinetic friction is the friction between two bodies they are rolling .And that force is opposite to the rolling angle
What is the difference between sliding and rolling and kinetic and static friction?
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.
Is it true that if you slide a bag of groceries along a countertop you must overcome rolling friction?
Rolling friction results from momentary attractions between a rolling object and the surface it is rolling on, so as long as the same surface of the bag is always facing the surface, as is usually true for sliding, there is no rolling friction to consider.However, for sliding, there are two different values for friction: the static value, which is how much force must be applied to a resting object to start moving it across a surface; and the dynamic value, which is how much force must be applied to a moving object to make it keep moving with the same velocity.
Why sliding friction greater than rolling friction and if the area of contact is same?
The FORCE of Friction is INDEPENDENT of Surface Area. Only the 'Coefficient of Friction', and the Force between the two Surfaces. Sliding Friction is greater than Rolling Friction ONLY if the Coefficient of Friction is GREATER for the Sliding Surfaces.
Do you have to overcome rolling friction when you slide a bag of groceries across the countertop?
If the bag is sliding across the countertop (i.e., the same surface of the bag is always in contact with the counter), then no. Rolling friction is only relevant when the surface of an object in contact with the surface it moves across always changes.
Is static friction and limiting friction the same?
Limiting friction is the case of static friction where an object is right on the edge of moving, any more force applied to the object will cause it to move. Limiting friction is the largest value that the static friction can take
Why is rolling friction a type of static friction even though static means not moving?
It's static because the major cause of rolling friction is deformation of both roll and surface it's moving on - surfaces do not slide on each other(at any given instant the relative velocity of point on the roll that touches surface and surface itself is zero - at least in the model). The deformation causes the point of contact to be slightly displaced in front of the moving roll and reaction force at this point plus weight of the rolling object are no longer on the same line. This introduces torque that opposes the rotation of the roll. Rolling friction is essentially static friction because the point of the wheel in contact with the ground does not slide against it, but instead maintains its position. If enough static friction does not exist and the wheel slips against the ground, motion will not be proper. Sliding friction will however be taken into account in that case.
