There are many reasons why friction is an advantage to human motion. Friction helps humans to stop when they need to stop.
All types of friction act opposite to the direction of motion but static friction is the friction present before motion occurs.
Static friction is the type of friction that opposes the motion.
Friction slows down the motion of objects.
Friction.
mechanical by friction or by motion of a conductor
Friction is the sum of resistance to motion and as for resistance, it slow down the motion.
By definition, friction is opposite of the direction of motion.
Ideal Mechanical Advantage ignores friction. Friction is a force that pops up when you move things. Friction in the direction of motion translates to energy -- lost energy. Unless you want to heat up the world.
Friction is the force that resists motion when two surfaces are in contact with each other. It opposes the relative motion or tendency of such motion between the surfaces.
No. Friction is just necessary for controlling motion.
Motion can stop friction in situations where the object comes to a complete stop or when an opposing force counteracts the motion. Friction occurs when two surfaces rub against each other, so if there is no relative motion between the surfaces, there will be no friction.
No, the ideal is without friction.