Question

Write the friction its disadvantages

Answer 1

Friction is a resistive force that slows down or prevents motion, it can be a nuisance, because it can hinder motion and cause the need for expending extra energy.

Friction between the engine parts increases the temperature and causes parts to wear down.


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Answer 2

Ahhh... about friction it is a force between two surfaces in contact which oppose the relative motion between them.
while its Disadvantage are manifests as heat energy generally and sometimes as noise. When objects are moving against each other, there is a generation of kinetic energy. Friction causes this kinetic energy to change into thermal energy. Thus, work is converted into heat. It is a non-conservative force. Mechanical energy is not conserved and some part of the mechanical energy is dissipated as heat.
The biggest disadvantage of friction is wear and tear that happens as a result of friction. Wear is the gradual removal of material at solid surfaces occurring as a result of damage caused by friction and/or corrosion. Wear leads to loss of functionality. Tribology is the study of wear of materials.