Question

Friction can be increased by

lubrication

by making the object in streamline shaped

spreading some sand/ dust particle in the surface

spreading water/oil in the surface


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Answer 1

Answer:

spreading some sand/ dust particle in the surface

Explanation:

PLZ MARK ME AS BRAINEST PLZ

Answer 2

Answer:

spreading sand / dust particles in the surface.

if it helps mark as branliast and follow me...