find out 10 demerits of friction from your daily life
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demerits are that we can not express the number correctly .
are little bit lengthy
are little bit lengthy
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1) produces heat in various parts of machines in which some useful energy is wasted too
2) more power has to be exerted in machines
3) opposes the motion
4) noise is also produced in some machines
5) engines of automobile consumes more fuel
6) effiency decreases of machines
7) getting shocks by doorknobs
8) rug burn
9) forest fires occur because of friction between branches
10) counteracts movements so more energy is required and unwanted heat is produced(eg:- wearing out of shoes)
2) more power has to be exerted in machines
3) opposes the motion
4) noise is also produced in some machines
5) engines of automobile consumes more fuel
6) effiency decreases of machines
7) getting shocks by doorknobs
8) rug burn
9) forest fires occur because of friction between branches
10) counteracts movements so more energy is required and unwanted heat is produced(eg:- wearing out of shoes)
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