Friction can be reduced by changing over from _____?

سے اوور بدل کر رگڑ کو کم کیا جا سکتا ہے؟ _______

Sliding to rolling

Rolling to sliding

Potential energy to kinetic energy

None of these

Friction can be reduced by changing from sliding to rolling.

Replace sliding friction with rolling element friction.

Such as with the use of rolling element bearings.