Table of Contents
- 1 Why coefficient of kinetic friction is less than coefficient of static friction?
- 2 Can the coefficient of friction be greater than 1.0 explain with an example?
- 3 Is the coefficient of kinetic friction always less than 1?
- 4 Why is the coefficient of static friction always greater than the coefficient of kinetic friction?
- 5 Can the coefficient of kinetic friction be less than zero?
Why coefficient of kinetic friction is less than coefficient of static friction?
Kinetic friction is less than the static friction because in kinetic friction one object is in moving condition & there is less inter molecular attraction b/w the objects whereas in static friction there is relative motion & thus there is much more inter molecular attraction & this is only why we need less force to …
Can the coefficient of friction be greater than 1.0 explain with an example?
A coefficient of friction that is more than one just means that friction is stronger than the normal force. An object such as silicon rubber for example, can have a coefficient of friction much greater than one.
What does a friction coefficient of one mean?
If materials have a coefficient value of one, it means the friction force is the same as the normal force. In other words, the force required to move the object is equal to that object’s weight. Objects can also have a friction value higher than one.
Is the coefficient of friction always the same?
The coefficient of friction is not always the same for objects that are motionless and objects that are in motion; motionless objects often experience more friction than moving ones, requiring more force to put them in motion than to sustain them in motion.
Is the coefficient of kinetic friction always less than 1?
Some people think that the coefficient of friction can never be more than 1, but this is not true. A coefficient of friction that is more than one just means that friction is stronger than the normal force.
Why is the coefficient of static friction always greater than the coefficient of kinetic friction?
Static friction is greater than kinetic friction because there are more forces at work keeping an object stationary than there are forces working to resist an object once it is in motion.
Could ΜK or μs ever be greater than 1 explain why or why not?
Since the objects are at rest with one another, more molecular bonds are able to form making the object harder to move and so greater force is needed to start motion when compared to the kinetic friction case. Therefore µs is generally greater than µk.
What is the lowest coefficient of friction?
PTFE
Friction and the Fluorocarbons PTFE has the lowest recorded m value for any material with a dynamic coefficient of friction of between 0.05 and 0.15 and a static coefficient of friction of approximately 0.05.
Can the coefficient of kinetic friction be less than zero?
The coefficient of friction depends on the objects that are causing friction. The value is usually between 0 and 1 but can be greater than 1. A value of 0 means there is no friction at all between the objects. This is only theoretically possible.