how frictionnis useful for us?
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Friction:
A force that opposes relative motion between two bodies in contact with each other is called as friction.
Friction is useful for:
- It helps in walking on the road or some where
- It helps to hold the objects
- Vehicles will move on road with friction
- Friction useful for keeping grip
Types of friction:
- Static friction
- rolling friction
- sliding friction
- Fluid friction
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