short note on friction force
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Frictional force refers to the force generated by two surfaces that contacts and slide against each other. ... If an object is pushed against the surface, then the frictional force will be increased and becomes more than the weight of the object.
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It is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. It refers to the force generated by two surfaces that contacts and slide against each other.
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