Which are the following occation friction is beneficial and non benefi – InterviewSolution

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Which are the following occation friction is beneficial and non beneficial1. striking a match stick on the side of a match box2. wear and tear of machines. 3. ability to hold objects 4. wearing out of tyres 5. walking 6. loss of fuel

Answer»

Beneficial : 1, 3, 5

non beneficial : 2, 4, 6

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