chemical change
no limiting friction is not less than rolling friction
Friction's direction is always against the direction work is being applied to.
Always.
Not God.. Friction was always there, that's why planets exist.
Yes, it is generally true that kinetic friction is always greater than the maximum value of static friction.
Friction.
Actually, the static friction is neverzero.
friction is a natural phenomenon it is always being used.. always, every second of everyday there is friction in action everywhere even in the deep reaches of space. I mean literally EVERYWHERE and ALWAYS.
Friction is always against the direction of the movement.
Friction always acts in the opposite direction to that of the motion of the other object. Meaning, friction slows down the motion of an object by exerting opposing forces on it.
The work done by static friction is always dependent on the displacement of the object it acts on.
No friction is not always bad. In fact consider an example of running on wet floor. If there is too little friction it might cause you to slip and slide.