Frictionless planes do not exist in the real world. However, if they did, one can be almost certain that objects on them would behave exactly as Galileo predicts. Despite their nonexistence, they have considerable value in the design of engines, motors, roadways, and even tow-truck beds, to name a few examples.

Can a surface be frictionless?

Theoretically, no surface can be completely frictionless. One can reduce the friction by using smooth surface like marble or by applying lubricants to it like oil, water, etc.

Is there any frictionless material?

When the lubricant materials - graphene and diamond-like carbon (DLC) - slid against each other, the graphene began rolling up to form hollow cylindrical 'scrolls' that helped to practically eliminate friction. ...