soul5 said:Homework Statement
A person pushes with force of 220N on a 40 kg create. The coefficent of kinetic friction of 0.35. What is the magnitude of the frictional force?
Homework Equations
Ff = uN
The Attempt at a Solution
so do I just go
Ff = 0.35*(40kg)(9.81m/s^2)
Is that it?
What is the 220 Force for?
Dr.D said:What direction is the 200 N applied to the crate?
Friction is a force that acts between two surfaces in contact and opposes the motion or attempted motion of an object. It can cause objects to slow down, stop, or change direction.
The magnitude of frictional force is determined by the type of surfaces in contact, the force pressing the surfaces together, and the roughness of the surfaces.
The factors that can affect the magnitude of frictional force include the type of surface materials, the force pressing the surfaces together, the roughness of the surfaces, and the presence of any lubricants.
The magnitude of frictional force can impact an object's motion by either slowing it down or preventing it from moving altogether. It also determines how much energy is required to overcome the force and move the object.
The magnitude of frictional force can be reduced by using lubricants, choosing smoother surface materials, and reducing the force pressing the surfaces together. It cannot be completely eliminated as it is a natural force that occurs between surfaces in contact.