what’s the physical meaning of mathematical operations?

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Let’s say you have a division. You’ve got 3/2, where 3 might be acres and 2 might be brothers so from there you could deduce that the division just means that the 3 acres of land will be distributed between two brothers. Summation and multiplication are quite straight forward, but what the hell does one do with multiplication and exponentiation? If I got 20 N-m of torque, wtf does the multiplication tells me there? If something follows a square root?

Please feel free to add any other operations to these. Thanks!

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Anonymous 0 Comments

Multiplication is just repeated addition. In fact that’s how computers do multiplication at a circuit level.

> 20 N-m of torque

That’s not multiplication. Newton-metre is a unit of measure. It’s just twenty of them. Like saying 20 dollars.

A newton metre is just the equivalent of putting one newton of force on a moment arm 1 metre from the point of rotation.

And a newton is how much force it takes to accelerate 1 kg by 1 metre per second per second.

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