Why does a lever work?

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So i know a lever has two sides, the effort and the load.

If the effort side is longer it means the angle is larger, but then it requires less force to push the load side.

Does a lever work because the weight you are manipulating has been equally divided between the whole swing distance of the “effort” side of the lever?

Am I thinking about this correctly?

In: Physics

4 Answers

Anonymous 0 Comments

It’s easier for me to explain this in terms of gears, which are just a bunch of interlocked levers. GM has a really good old training video about this for explaining how a transmission works.

Say you have a big wheel and a small wheel. You spin the big wheel. It spins the smaller wheel very fast, because spinning your wheel a half rotation has more than a half rotation to the smaller wheel because of it’s smaller size.

Similarly, when you move a lever, the individual motion, the half a pull or whatever, you’re moving your bit very far. It’s creating very little movement on the other side. But what little you move has more torque on account of angles and shit

I’m toasted right now I’ll explain again in the morning if you remind me.

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