The best way to overcome friction is with lubrication. With friction loss due to aero-dynamics or hydraulics you need to reduce drag.retold by Matt Isagan)
Okay 2 ways for the friction to increase is speed and non lubricant
Friction is necessary for wheels to rotate and nails to keep in walls.
Without friction, we couldn't walk or grip onto anything.
Speed it up!
by giving it better aerodynamics you can reduce friction. but also the faster it goes the more friction it gets.
The four ways to decrease friction are: lubrication (using substances like oil or grease to reduce friction), using smoother surfaces, reducing the weight pressing the surfaces together, and using ball bearings or rollers to replace sliding friction with rolling friction.
In many ways
Rolling
falling over and grazing you knee, if there was friction between your feet and the floor you wouldn't of fallen over or maybe the friction was to great and you tripped over, the graze wouldn't of happened if there was no firction on the ground you fell on you would just slid and get a bruise but because there was your skin was forced along the high frictioned surface( say gravel) and grazed your skin hope i helped for one
movement and heat
Rougher surface and more weight to the object increases friction
Of course! Friction applies in gymnastics in TONS of ways.