Question

What causes friction.how does oil help in reducing it?​

Answer 1

Answer:

friction is produced whenever two bodies try to move each other

and the irregularities between them oppose their motion.

apply oil lubricates those irregularities by settling between them hence reducing friction

and helps in smooth motion

Answer 2

Answer:

There are a few factors that friction depends on -

1. roughness of the two surfaces in contact

2. Type of friction ( Static, sliding or rolling)

3. Weight of the object

Oil acts as a lubricant. It reduces the friction friction between 2 surfaces by forming a smooth layer on the rough surface.

Hope it helps.  Please do inform about any corrections in the comments.

Thank you!!!  :)))