Question

What is the cause of friction ? How can we minimise it ?

Answer 1

Answer:

The irregularities between two surfaces or we can say, interlocking of an object between two surfaces causes Friction

we can minimize it by applying greese , oil or lubricants and by polishing the surface

Answer 2

Explanation:

The interlocking of irregularities on the surface of two bodies in contact which cause friction, is overcome to a great extent by the use of lubricants like oil, grease etc..