ಕೆಳಗಿನವುಗಳಲ್ಲಿ ಯಾವುದು ಘರ್ಷಣೆಯ ತಪ್ಪು ಉದಾಹರಣೆಯಾಗಿದೆ?

Friction acts when surfaces slide against each other: a washing machine pushed on a floor, a sled on snow and a person on a slide all involve it. Lifting a heavy object straight up is working against gravity, not friction, so it is the wrong example.