The discussion revolves around the differences between inertial and static friction, with a focus on the concept of inertia and its relationship to frictionless surfaces. Participants explore the definitions and implications of these terms in the context of physics.
The discussion is ongoing, with participants seeking to clarify definitions and relationships between concepts. Some guidance has been offered regarding the nature of inertia and its independence from friction, but no consensus has been reached on the initial confusion regarding terminology.
There is confusion around the term "inertial" as it relates to mass and friction, with participants attempting to clarify their understanding of inertia in the context of different surfaces.
What do you mean by "inertial" friction? Are you thinking of kinetic friction?semc said:HI guys, i was wondering what is the difference between inertial and static friction?
If the ground is frictionless, how can there be static friction?If a car is on a frictionless ground, does it have static friction and the inertial is the same even if it is on a rough surface right?
"Inertia" is a property of a body due to its mass. Why would it change?semc said:Sorry about that, i meant to ask whether inertia changes if the surface is frictionless
Right. If you are trying to push a box along a rough horizontal surface, then to start it moving you must push with a force that exceeds the maximum static friction between the box and the surface.semc said:yeah that was what i though. so when force is applied to an object, the force only have to exceed the static force in order for it to move right?
What about it?What about inertia?
Doc Al said:Perhaps you are thinking of how much force is required to get something moving if there is no friction? What do you think? If that box is on a frictionless surface, how hard do you have to push it to start it moving?
Right! From Newton's 2nd law, if you apply a net force F, the mass will have an acceleration = F/m. The harder you push, the greater the acceleration, but even the slightest push will create some acceleration.semc said:If there is no friction that means the object will move and continue its state of motion even if the force is very little?