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Answers: 1
when is friction useful
Answers: 6 Views: 859 Rating: 2 Posted: 14 years ago

to keep a biker on his seat

to keep cars on the road 

to help cars and bikes to brake 

when sanding wood

to start a match

to stop slipping on any suffices 

to help us pick things up or grip things

to stop our shoes from sliping

unable to write with out friction

to help us to stop when running

 

 

Rating: 4 Posted: 14 years ago

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