Static friction resists an object from moving when at rest (still) with respect to the surface it is resting on or in contact with. Kinetic friction, or dynamic friction, (normally what we think of when we say 'friction') describes the friction that occurs when one body moves relative to another body and when both bodies are in contact with each other.
The equation fn mg ma is used to calculate the force of friction acting on an object of mass m moving with acceleration a by subtracting the force of gravity (mg) from the force needed to accelerate the object (ma). The remaining force is the force of friction.
friction
The term used to describe the build up of electric charge on a non-conductive material due to friction is static electricity.
Friction is not typically a significant factor when an object is floating in a fluid like water or air. The buoyant force pushing the object up and the force of gravity pulling it down are the main forces at play. However, there may be some minor frictional forces between the object and the fluid it is floating in.
"Kinetic energy" is the term used to describe the energy possessed by an object due to its motion. This energy is associated with the speed and movement of the object.
Friction causes the object to heat up.
friction
your hands or two rocks rubbed together
friction materials are the one which help in inducing friction to a friction-less object, like brake lining on the brake shoe is used for inducing friction between the brake shoe and the inner rim of the wheel.
friction
The equation fn mg ma is used to calculate the force of friction acting on an object of mass m moving with acceleration a by subtracting the force of gravity (mg) from the force needed to accelerate the object (ma). The remaining force is the force of friction.
friction
Friction
friction
friction
The term used to describe the build up of electric charge on a non-conductive material due to friction is static electricity.
Because of the friction created by the compressor piston