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To cut an apple, do I need more pressure or more force? When we want to destroy the intermolecular bonds, don't we need more force ?

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You can have a lot of force, but that does not necessarily mean you can cut the apple. Remember that $$P=F/A$$ So if you have a sharp knife you only need a small force because the pressure will be enough to slice through the apple.

The same counts for breaking a window: If you use the same force but a different surface area, the one with the lower surface area will be more likely to break the window.

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