Guidelines Can static friction coefficient be greater than 1?
Contents
Can the coefficient of static friction be greater than 1?
The coefficient of friction is a dimensionless and scalar value. The friction coefficient depends on the material used. (Like low friction between ice and steel or high friction between tire and asphalt) The friction coefficient is usually between 1 and 0, but in some cases it can go up to 1.7.
What is static friction?
It is a friction force (F) that occurs in the same magnitude and direction but in the opposite direction, preventing the movement. This friction force acts on the contact surface and is called the static friction force. If the force is continued to be increased, the friction force will no longer increase and the block will start to move.
How much is the static friction force?The force of static friction DOES NOT HAVE A FIXED VALUE. The more force you apply, the greater the static friction force, as long as the object does not move. We said it does not have a fixed value, but it has a MAXIMUM value.
How is the coefficient of static friction?
So if the force exceeds a certain value, the two surfaces begin to slide over each other and static friction leaves its place to kinetic friction. This maximum value is found by multiplying the static friction coefficient with the normal force pressing the surfaces together.
So let the static friction coefficient be 0.5?
Let the static friction coefficient be 0.5 and the kinetic coefficient 0.3. In this case, since the normal force is 40 N, the maximum static friction force is 20 N. We are pushing with 10 N, so the table continues to hold the object and the magnitude of the friction force is ONLY 10 N.
What does it do? static friction and kinetic friction?
Static friction and kinetic friction are two forms of friction. Friction is a very important concept when it comes to the mechanics of solid bodies. Friction is considered as one of the main causes of mechanical energy loss. Therefore, it is necessary to understand friction well in order to develop more efficient machines for energy saving.
Read: 152
