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Walking requires friction. Cars and bikes could not move without a frictional force between their wheels and the road. If you wrap a rope around a pole several times, you can use friction to your advantage (eg. suspension of a large mass). There are other reasons but I'm not going to go into any more detail.
What else can I help you with?
Where is friction usefull?
Warming your hands. Denver Simmons
How is friction usefull for us?
It holds things in place - try taking a walk on ice.
Is this site usefull?
yes this site is usefull :)
Is friction usefull in playgrounds?
Friction is fascinating because in so many situations we try to reduce friction, but friction is a necessary force, without which everything would be impossible. Without friction we would all be flat on the floor without any methods of directing our motion. We would randomly collide with things and then continuing moving in another direction. Without friction the slide at the playground would be really fast, but you could never climb the ladder to get on it. The swings would be useless since no one could get into them. So friction is necessary for playgrounds.
Is iPhone 4S usefull for 12 year old boy?
yes it is usefull.
Are vocabulary usefull to learn English Language?
I think thet's very usefull
What does worth mean?
Usefull
What is usefull about a wasp?
yes
How would physical science be usefull to a musician?
Indirectly actually or rather usefull to the making of the musical instrument instead.
Which part of the plant bamboo is medicinally useful?
whole plant is usefull. ali most all the parts of the plant are usefull.
What is letarel?
this is letarel,it is very usefull
Is a scope usefull on a 22?
Yes
