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ituations where friction i, , neficial and non beneficial, , , , Situations where friction is, beneficial, , Situations where friction is non, beneficial, , , , Striking a match stick on the, side of a match box, , Wear and tear of machines, , , , Ability to hold objects, , Wearing out of tyres, , , , Can walk on the floor, , Fuel loss, , , , , , Treading of tyres of vehicles, , , , , , Different methods to reduce friction, , 1. Streamlining, , > Designing the shape of objects so as to reduce friction is, , Streamlining., , Eg: The front of the aircraft is made sharp., The front of racing car is made sharp., The front of the boat is made sharp., , 2. lubricant, , > Materials used to reduce friction are the lubricants., , Eg: Oil, Grease, Coconut oil, , Graphite (Graphite is a solid lubricant)