TIs is
lest fiction, because of it's compacity....
less friction then what?
no limiting friction is not less than rolling friction
rolling friction is 1/100 less than spliding friction
No, We cannot do work on friction less surface
No.
An ice cube has less friction than a sponge
than what?
You want less friction. Then you will go faster.
Rubber will have a high coefficient of friction on most surfaces, but we cannot know whether there is more or less friction unless we have something to compare it to.
Fluid friction.
Because friction is less on smooth surfaces. Smoother the surfaces, lesser the friction.