define frictional force.
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frictional force or friction is a force that is created when two surfaces move across each other. It slows down moving objects and reduces their Inertia
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Friction is the resistive force that an object suffers while moving over a surface.
It acts opposite to the direction of motion or opposes motion.
it is the reason for :
1.writing with chalk on a blackboard
2.walking
3.production of heat in heavy machinery
4. hand becoming hot while rubbing against thermocol
It acts opposite to the direction of motion or opposes motion.
it is the reason for :
1.writing with chalk on a blackboard
2.walking
3.production of heat in heavy machinery
4. hand becoming hot while rubbing against thermocol
Hope that really helped you!! :)
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