Question

When two surfaces are coated with lubricant, then they will:

• A. slide upon each other
• B. stick to each other
• C. roll upon each other
• D. jump on each other

Answer 1

The correct option is A slide upon each other

If two surfaces are coated with lubricant then friction will be reduced so they can slide over each other if one is pushed on the other. It is friction which prevents relative motion between two surfaces.