speed
There are four types of friction; sliding rolling, fluid and static, so depending on what you are doing friction is going to help you some how.
He went swimming in a swimming :)
I was swimmingWe were swimmingYou were swimmingHe/She/It was swimmingThey were swimming
no, swimming is a real sport, syncronised swimming isn't
Recreational swimming is swimming just for fun. It is noncompetitive and usually not structured.
proper swimming costume- not lycra or anything swimming cap swimming goggles
natación This is 'swimming' the noun, not 'swimming' the participle. 'Swimming' the participle is nadando. To say, "The swimming team is swimming." in Spanish, you say, "El equipo de natación está nadando."
1.5 k in swimming is 1.5 kilometers of swimming or 1 and a half kilometers of swimming.
The clothing you would wear while swimming is the definition of swimming out.
People from swimming clubs go to swimming galas
British Swimming
In a swimming pool