Question

The proper use of lubricants cannot reduce

• A. Inertia
• B. Static friction
• C. Sliding friction
• D. Rolling friction

Answer 1

The correct option is A

Inertia

The explanation of the correct option:

Option (A):

1. These are the substances applied to heavy working machines in the factories to reduce the friction between two objects which are directly in contact with each other.
2. These are usually liquid or semi-solid in nature.
3. Using lubricants can't reduce inertia as inertia depends upon the mass of the object and the mass of an object cannot be changed.

The explanation for incorrect options:

Static friction, sliding friction, and rolling friction are all types of friction.

Hence, the correct answer is option (A).