Why does a knife need to be pulled back and forth to cut things?

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Like what difference does the cutting motion do compared to just pushing down a knife ?

In: Physics

19 Answers

Anonymous 0 Comments

Pushing a knife through something is chopping, knives made for chopping are heavy so the blade does the work (think cleaver)

Sliding your knife across something is cutting, that’s what kitchen knives are meant to do. It’s now sawing, but ever so slight movement of the blade from first contact to cut completion

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