With one pulley you pull the whole 500 kg. Every extra strand of rope holding the block takes its own share of the weight, so with 8 strands each one carries 1/8: 62.5 kg of pull without friction, or about 70-78 kg with real, well-oiled wheels. That’s about the weight of an adult hanging on the rope.
But a pulley doesn’t make force out of nothing. To lift the block 1 m, each of the 8 strands has to get 1 m shorter, so you pull 8 m of rope. Half the force, twice the rope. You trade distance for force.
Structural engineering, visualized.
#structuralengineering #engineering #construction
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Roll it onto a spindle with a ratchet stop to prevent any recoil.
Just lift the first two tiles
Which means you still lose
You can pull 100tones there isn't a limit.
I would never understand how a pulley works
The word PULLEY is dumb
This is how the pyramids where built over hundreds of years.
It like walking with 10kg for 1 Km… Or 1kg for 10km
Use a fork lift
Add reel drum
Dit gaat niet helemaal op. Je hebt ook krachtverlies in wrijving.
Really!
It's a fascinating tension distribution…and it works mathematically so well.
add another pulley with a handle, & now you've got a winch, no 8 m trip underground🤷🏽♂️
Then there's no problem. The performance is being done no problem. Solving the problem means adding solutions, PERIOD!
Get a better mic
Ai shit,.or idiot using ai 😂
Its still same energy used.
Can use this technology to increase motor power torque
That's why we got hydraulic presses.
No add a cylinder and a crank handle. Wrap the rope around the cylinder turn with crank adds even more mechanical advantage
Great video! Peace out
Now I know why lat pulldown is easy vs bodyweight pullup 😢
The rope is the same
Just use a chain hoist
Torque conversion
So can't we just use rollers to apply the same force to wind up the length
Pyramids ~ 1 to 2 person can lift 5 tonnes of limestone/granite stones with pulleys …
The Egyptians knew the trick very well
add a system reduction of gears and a wheel (cog) and driveshaft .. then you have a force multiplication via gears
*winding 8m of rope 😅
Mechanical leverage
Not everything is backed by science. Some things just work naturally.
A bit optimistic to assume there is no friction in the system.
– Attach 100 billions pulleys to the earth
– pull the end
– Lift the earth
Work = Force x Distance
Just use half a pully to do extra work and half the distance 😂
Just have it on a motorized spool 😂
Well lucky I brought a lot of rope