Can a Self-Supply Gravity Motor Generate Infinite Energy?

[13lackJesus]

Is it possible to create enough energy( by letting a pound falling to crank a rotor) to bring back up the pound?

 

[Mark44]

Is it possible to create enough energy( by letting a pound falling to crank a rotor) to bring back up the pound?

No.
There is always some energy lost due to friction so that you get less stored energy than would be needed to bring the weight back to its original position.

 

[13lackJesus]

if you use a trampolin at the end to help a little the lift?

 

[dauto]

if you use a trampolin at the end to help a little the lift?

Nope. There is no way around energy conservation and there will always be some losses.

You should read up on perpetual motion machine of the third kind.

 

[adjacent]

Is it possible to create enough energy( by letting a pound falling to crank a rotor) to bring back up the pound?

It's possible IF,no external forces were present.but this is not the case of our universe(as far as I know of it)Friction and air-resistance will of course make it lose energy.

 

[axemaster]

It's not even an issue of external forces like friction or air resistance, even the simple act of accelerating the mass causes it to emit gravity waves and lose energy.

 

[13lackJesus]

if you help the pound with magnetic force?

 

[jtbell]

I'm sorry, we don't discuss ideas for perpetual motion machines here, even to debunk them.

You can find some useful links in our list of banned topics, under 'Perpetual motion and "free energy" discussions', in the second post of our 'Rules & Guidelines' thread:

https://www.physicsforums.com/showthread.php?t=414380