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Would it be easier to push or pull something if the angle mass force applied and friction coefficient were the same for both?
Wiki User
∙ 7y ago
If two forces are in the same direction, they aid one another, making it easier to push or pull.
Wiki User
∙ 7y ago
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Is rolling friction greater than sliding 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 is easier to stop sliding or rolling friction?
== == AnswersIt is easier to stop sliding friction than rolling friction. The force due to sliding friction will always be greater than the force due to rolling friction. And since friction force will be in the opposite direction of motion it will be easier to stop an object in motion that is sliding than one that is rolling.
What do you use to measure frictional force?
The maximum frictional force acting on an object is found by the equation F = Fn * Fs, where Fn is the normal force acting on the object (by Newton's 3rd Law, Fn can equal the body's weight in magnitude) and Fs is the static friction property of the surface, usually determined by experiment or given. If the body is already in motion, F = Fn * Fk, where Fk is the kinetic friction. This is also a property of the surface determined by experiment. It is usually significantly less than the static friction. (This is why it is easier to push a heavy crate across the floor once you start to move it.) Example: The static friction of a desk is determined by experiment to be .5. What is the required horizontal force to be applied to a 10 N book in order to move it? 1) To move the book, the applied force must exceed the maximum frictional force acting on it. so Fapp > F. 2) Find F. F = Fn * Fs. F = (W of book)(.5) as Fs is given to be .5. By Newton's third law, the weight of the book equals the normal force on it from the desk. F = (10 * .5) The frictional force = 5 N. Therefore, you must apply a force greater than 5 N horizontally.
What would be easier to push across the desk rubber or ice?
Ice, because it has lower friction than rubber.
Why do slippery fluids such as oil reduce sliding friction?
We can reduce friction by oiling ("lubricating") the surfaces. This means that the surfaces no longer rub directly on each other, but slide past on a layer of oil. It's now much easier to move them.
Why is it easier to determine the coefficient of kinetic friction if the object moves with a constant velocity?
if moving with constant velocity the only force to slow it down is kinetic friction; if it is accelerating velocity is not constant and an additional force is being applied.
Why do buses stop before RR tracks?
Because it's easier for a bus to stop than for a train. (has to do with the coefficient of friction)
What are two examples of two surfaces that have a low coefficient of friction?
Ice and glass both have very low coefficients of friction because they are very smooth, so it is easier for a substance to glide over them.
What is the coefficient of friction for marble?
The coefficient of friction is not defined for a single substance, but for two substances that have contact with each other - for example, marble with marble, marble with wood, etc.; it may also vary a lot depending on lubrication. That is, on a wet wet marble floor you'll slip easier - there is less friction - than on a dry one.
Why it is easier to roll a barrel on road than to pull it?
When we roll a barrel on the road, rolling friction acts in the direction opposite to the direction of rolling. In case of pulling, kinetic friction acts opposite to the direction in which the barrel moves. The coefficient of rolling friction is almost always less than the coefficient of kinetic friction. So therefore, in layman's terms, rolling friction is less than kinetic friction, therefore less resistance is faced by the barrel while rolling.
Can friction is a force that can make easier?
Friction definitely is a force that can make things easier. Stopping a car for example is made easier by friction.
Is rolling friction greater than sliding 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 is easier to stop sliding or rolling friction?
== == AnswersIt is easier to stop sliding friction than rolling friction. The force due to sliding friction will always be greater than the force due to rolling friction. And since friction force will be in the opposite direction of motion it will be easier to stop an object in motion that is sliding than one that is rolling.
How does friction effects peed on a skateboard?
I hope you mean speed, if not I'm at a loss for words. Friction effects both the contact between the wheels and the ground, as well as your shoe and the grip tape. You would like a high coefficient of static friction between the ground and your wheels so you don't end up skidding, fishtailing, and later flat-out falling down. Also, you would want a medium-level coefficient of kinetic friction and possible a medium-high coefficient of static friction between the grip tape and your shoe in order to grip the board, yet still be able to slide your foot for flip tricks. If the coefficient of static friction between the grip tape and your board is too high, it won't flip properly as it might overflip or flip on an unusual axis if it were to be too low. As you use the grip tape, both coefficients will decrease because the grains on the grip tape will be smaller and easier to pass over with a lesser repelling force of friction. Coming from a skateboarder in college-level physics.
What does it mean to say that friction resists force?
friction is when two objects or air rubs together and creates heat which the slows the two objects down. its like carpet burn your trousers rub against the carpet it slows you down and hurts!
Rollins is easier than sliding.why?
No friction.
How can you measure the sliding friction?
In physics a number known as the 'coefficient of friction' is used to calculate the frictional force between any two surfaces. Ff=µFn, Meaning that the frictional force (Ff) is equal to the coefficient of friction (µ) multiplied by the normal force (Fn). If one wishes to calculate the coefficient of friction for two objects, you can pull an object of whatever material you wish along a floor of whatever material you wish. As long as the object remains at a constant speed, the force which you use to pull the object (which can be measured by a force meter) is equal to the frictional force. Once you find the normal force (to find the normal multiply the mass of the object by the acceleration due to gravity on your part of the world, Fn= mg) you simply divide the frictional force by the normal force and you have the coefficient of friction. or just ask your teacher lol
