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### Author Topic: Gravity Field  (Read 2080 times)

#### frii143

• Newbie
• Posts: 38
##### Gravity Field
« on: June 14, 2020, 05:11:11 PM »
Gravity can pull weight downhill. A lever can increase work done. Have the gravity pull the weight downhill in a circle. Use a lever to increase it mechanical advantage. The lever would go past center to have another weight that balances the work weight to the top of the hill. This weight would sit on the hub and go out from center to raise the weight.

#### citfta

• Hero Member
• Posts: 1050
##### Re: Gravity Field
« Reply #1 on: June 14, 2020, 06:14:20 PM »
Sorry frii143,

but a lever CANNOT increase work done.  A lever exchanges distance for force.  On the long side of the lever the force is smaller and the distance is greater.  On the short side of the lever the force is greater but the distance is shorter.  You multiply force times distance to get torque.  A one pound weight 6 inches from the center of the pivot is that same as a half pound weight 1 foot from the center of the pivot.  So there is no increase in work done.

If I misunderstood what you posted please post a diagram or sketch to show what you mean.

Respectfully,
Carroll

#### frii143

• Newbie
• Posts: 38
##### Re: Gravity Field
« Reply #2 on: June 14, 2020, 07:37:03 PM »
My thinking is a length of tubing 6 feet will give me 6 time the weight moving downhill. This is my tricky question. It to move a 50kg weight uphill at 45 degrees take 350n could 5 50kg weights moving downhill at 10 degrees at 85n create free spinning just by gravity. It in a circle.

#### frii143

• Newbie
• Posts: 38
##### Re: Gravity Field
« Reply #3 on: June 14, 2020, 09:00:17 PM »
The diameter would be 7.07195 feet. The 45 degree would be 6.34777 inches on one leg. The 10 degree would be 38.0866 inches on the lone leg. There be 6 45 inclines and 6 10 declines.

#### Floor

• Guest
##### Re: Gravity Field
« Reply #4 on: June 16, 2020, 07:49:00 PM »
@frii143

CITFTA is correct.  But if you build such a device and experiment with it,
you may learn a lot of physics.  GO for it.

The energy that an object of a given weight has, by free falling from 20 feet, is the same
amount of energy that one could harvest from it, by slowly lowering that same
weight 20 feet on a string.

The difference is that the free falling energy is expended rapidly while the lowering energy
is expended gradually.  But they are of the same amount.

Look at it this way.  If one lowered the weight 10 feet gradually (1/2 the energy potential) while harvesting that energy for an electric gererator, one would have 10 feet out of 20  still available for free fall (1/2 the energy potential).  2 X 1/2 = 1, either half is equal in energy to the other half.
Either way the energy stored as the weight of the object and the height it could fall from, fast or slow, is the same amount of energy.

good hunting
floor

#### frii143

• Newbie
• Posts: 38
##### Re: Gravity Field
« Reply #5 on: June 16, 2020, 09:31:19 PM »
My thinking is a little off I know. One time I thought the problem with Gravity wheels was the weight cancel each other out. So I thought to put all the weight on one side and use its force to push water uphill. Once uphill the water squeezed up would help squeeze more up. Then I bought some tubing and balloons an it took a lot of force just to squeeze a little up.