Friction is responsible in wastage of energy because due to friction different parts of am machine like a water pumping motor wear and tear because excessive heat is produced, this reduces efficiency of a machine.
Due to friction the sole of a shoe is worn out.
BECAUSE OF FRICTION THE GROOVES OF TYRES OF A CAR GET WORN OUT,
in schools our erasers become smaller because their tips get wear off when they come in contact with the copy as rubbing leads to production of friction .
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