Answers

2016-02-12T08:02:14+05:30
I know  1 static friction 2 kinetic friction 3 rolling friction 4 fluid friction 5 i think  air friction
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2016-02-12T15:55:43+05:30
Types of friction are
1. Fluid friction-for example- Rowing your boat through the water 
2. Sliding friction-for example- Cartilage against your bone. 
3. Rolling friction- for example-Riding your bike or skateboard. 
4. Static friction- for example-You trying to push a heavy bookcase.
5. Air friction-for example-A skydiver falling is affected by air friction or he would fall straight down in an instant
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