Question

Sliding friction can be converted into rolling friction By adding wheel By using lubricants By streamlining By making grooves

Answer 1

Answer:

use of rollers, wheels, converts sliding friction into rolling friction. As we know rolling friction is less than sliding friction, therefore by the use of rollers and wheels we can reduce the amount of force required for moving the object and so the object can be moved easily.

Hope it helps you...

Answer 2

Answer:

by adding wheels

Explanation:

when you add wheels to an object an move it the object just 'roll over' the ground so the friction is less and to make an object rolling the best option is to add WHEELS