What is friction?

Friction is the opposite force against the relative motion of solid objects, fluid objects. Friction is the cause of slowing the movement of objects. There are three kinds of friction. Static friction, sliding friction, rolling friction. Friction is caused by microscopic cavities on the surface. These irregularities are the cause of frictional strength

Static friction - This friction arises from the body at rest. The object in contact with the surface is linked with the surface. To overcome this friction, more power is needed. It is the largest of 3 friction

Sliding friction - This friction occurs when an object slides over the surface. Since the contacting surface here is larger than the rolling object, this friction is larger than the rolling friction.

Rolling friction - This friction is caused by object rolling. The force required to overcome this friction is minimal

To overcome this friction, the aircraft is made of aerodynamic bodies to move through air resistance. The boat is also made of hydrodynamic body to overcome resistance

Normal force is defined as the net force compressing two parallel faces together and its direction is perpendicular to the face. In the simple case where the mass remains on the horizontal plane, the only component of the normal force is the force due to gravity, N = mg. In this case, the magnitude of friction is the product of mass, gravitational acceleration, and friction coefficient of the object. However, the coefficient of friction depends only on the material, not as a function of mass or volume. For example, large aluminum blocks have the same coefficient of friction as small aluminum blocks. However, the magnitude of the friction itself depends on the normal force and therefore the mass of the block.

But what if friction is not as bad as ours? For example, you can not firing without friction. Every surviving fan knows the basic rules ... "There is no fire, no life" You can skillfully create unfinished pieces on a beautiful table without rubbing. Likewise, handling dose friction will actually help you navigate our lives. If friction is important for our growth and development? If we accept it as part of the self-discovery and growth process, rather than avoiding friction

Rub It is the enemies of all digital product managers and customers on the planet. Friction is the relationship between customers and their customers' goals. In the graphical user interface (GUI), friction traditionally slows the user, including all navigation barriers (extra clicks, fields to complete, load time etc). A healthy commitment to guiding customers to where they want to go and eliminating unnecessary obstacles in the process is called "friction war".

Online developers have acquired their own Coke combat skills. Silicon Valley introduced me to the word "rub". User friction, product friction, and buyer friction are terms related to step number and difficulty of selection. It is actually the opposite of Coke's reaction. It's frustrating - Coke guy is trying to make you hard to choose. Happy people, make it as easy as possible. Then friction can return us to the pendulum. It shakes horizontally without problems, so friction is its enemy. Sometimes it can shake multidimension as described in other articles. Either way, the pendulum will shake. It always applies to another concept of science, whether to smother a person who knows what to do with a reckless personality, whether to obey discipline at all times. Analysts will recognize it well

Friction is the opposite force against the relative motion of solid objects, fluid objects. Friction is the cause of slowing the movement of objects. There are three kinds of friction. Static friction, sliding friction, rolling friction. Friction is caused by microscopic cavities on the surface. These irregularities are the cause of frictional strength. Normal force is defined as the net force compressing two parallel faces together and its direction is perpendicular to the face. In the simple case where the mass remains on the horizontal plane, the only component of the normal force is the force due to gravity, N = mg. In this case, the magnitude of friction is the product of mass, gravitational acceleration, and friction coefficient of the object. However, the coefficient of friction is not a function of mass or volume, it depends only on the material.