Why is it easy to pull a lawn roller than to push it?


#1

Why is it easy to pull a lawn roller than to push it?


#2

free body diagram of lawn roller|320x178

While pulling a lawn roller, the vertical component of the force applied acts in upward direction which decreases the apparent weight of the lawn roller. i.e.

Wapparent = mg-Fv

While pushing the lawn roller, the vertical component of the force applied acts in downward direction eventually increasing the apparent weight of the lawn roller. i.e.

Wapparent = mg+Fv

Hence, it is easier to pull a lawn roller than to push.

Source: https://notes.tyrocity.com/why-is-it-easy-to-pull-a-lawn-roller-than-to-push-it/