When I use a lever, I can lift heavier stuff. Where exactly does that additional force come from? Was it inside me all the time, or does it come from somewhere outside of me?

Question

When I use a lever, I can lift heavier stuff. Where exactly does that additional force come from? Was it inside me all the time, or does it come from somewhere outside of me?

In: Physics

Answer 1

You use the same force, but for longer distance – you have to pull the lever like 5 times further, to move the heavy stuff for “normal” distance

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so your force is multiplied 5 times, but you have to use it for longer.