Question

give some examples of how is friction responsible for energy wastage ?

Answer 1

when we cut a log of wood with an iron saw the log of wood gets heated due to the conversion of waste frictional energy ro heat energy.

Answer 2

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.

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