[Yahya A.Sharif (OP)]

The net force of the two is (60+x)-60 kg or x kg which moves the body upwards.

Yes, that is the net force upwards, but not the total force upwards.

The total force downwards is 60+x kg which is the force I exert plus the weight.The net force causes the movement not the total force. So I choose x which lifts the body..

[Kryptid]

The total force downwards is 60+x kg

Yes, because of Newton's third law. The force downward and the force upward must be equal and in opposite directions.

The net force causes the movement not the total force.

Right, but the only way there can be a net force upwards would be if the total force provided by your feet exceeds the force of the weight pushing downwards. So if you weigh 60 kilograms, then your feet must provide more than 60 kilograms of force upwards. If the force provided by your feet is below 60 kilograms, then you won't be lifted because the downward force provided by gravity is greater than the upward force provided by your feet. This is basic math and physics.

[Yahya A.Sharif (OP)]

Right, but the only way there can be a net force upwards would be if the total force provided by your feet exceeds the force of the weight pushing downwards.

Yes, according to physics the force must exceed 60 kg to lift the body 60 kg. In my experiment the force to lift the mass is less than 60 kg.

This is basic math and physics.

What says so? are they experiments or somthing else?

[Kryptid]

Yes, according to physics the force must exceed 60 kg to lift the body 60 kg. In my experiment the force to lift the mass is less than 60 kg.

*Sighs* No...

The entire point of what I'm saying is that your feet are producing in excess of 60 kilograms of force. If your feet cannot provide more than 60 kilograms of force, there cannot be any net force upwards. Since the force downwards and the force upwards are in opposite directions, we can consider one positive and the other negative. We can consider the force down as -60 kilograms. In order to lift the body upwards, an opposing force in excess of +60 kilograms is needed. If the force was less than +60, such as +50, you would get (-60) + (+50) = -10 kilograms. That is a net downward force because it is a negative number just like the force downward provided by the body's weight.

What says so?

Math says so. Addition and subtraction are a thing I learned in elementary school.

[Bored chemist]

What says so?

Reality.
The question is why you disagree with it.

[Yahya A.Sharif (OP)]

What says so?

Reality.
The question is why you disagree with it.

It is real and so mine my experiment is for living things.

[Yahya A.Sharif (OP)]

Yes, according to physics the force must exceed 60 kg to lift the body 60 kg. In my experiment the force to lift the mass is less than 60 kg.

*Sighs* No...

The entire point of what I'm saying is that your feet are producing in excess of 60 kilograms of force. If your feet cannot provide more than 60 kilograms of force, there cannot be any net force upwards. Since the force downwards and the force upwards are in opposite directions, we can consider one positive and the other negative. We can consider the force down as -60 kilograms. In order to lift the body upwards, an opposing force in excess of +60 kilograms is needed. If the force was less than +60, such as +50, you would get (-60) + (+50) = -10 kilograms. That is a net downward force because it is a negative number just like the force downward provided by the body's weight.

What says so?

Math says so. Addition and subtraction are a thing I learned in elementary school.

Math do not determine when the net force is non-zero an object should move or not it is physics

[Kryptid]

What says so?

Reality.
The question is why you disagree with it.

It is real and so mine some explanation must be presented to reconcile both, my experiment is for living things.

The physics of forces works the same for both living and non-living systems. What, do you think the human body suddenly becomes heavier when they die or something?

Yes, according to physics the force must exceed 60 kg to lift the body 60 kg. In my experiment the force to lift the mass is less than 60 kg.

*Sighs* No...

The entire point of what I'm saying is that your feet are producing in excess of 60 kilograms of force. If your feet cannot provide more than 60 kilograms of force, there cannot be any net force upwards. Since the force downwards and the force upwards are in opposite directions, we can consider one positive and the other negative. We can consider the force down as -60 kilograms. In order to lift the body upwards, an opposing force in excess of +60 kilograms is needed. If the force was less than +60, such as +50, you would get (-60) + (+50) = -10 kilograms. That is a net downward force because it is a negative number just like the force downward provided by the body's weight.

What says so?

Math says so. Addition and subtraction are a thing I learned in elementary school.

Math do not determine when the net force is non-zero an object should move or not it is physics

Um, it absolutely does. Math is an aspect of physics. If you have two people pushing against each other, do you really believe the weaker person will win?

[Yahya A.Sharif (OP)]

The physics of forces works the same for both living and non-living systems. What, do you think the human body suddenly becomes heavier when they die or something?

Yes.

Um, it absolutely does. Math is an aspect of physics. If you have two people pushing against each other, do you really believe the weaker person will win?

I presented an experiment that tell the truth. is it true or not and how" not theories or arguments"?
The scale reads 60+x kg, the added force is x when a person lifts his body then he pushes  with the added x so the force pushing up  the body is x which is less than 60 kg

[Bored chemist]

Yes.

That is impossible.
The mass of a body can not suddenly increase when they die.
A long time ago, people made the measurements. They were expecting the body to lose weight at the moment of death because they thought that the weight of the soul would be lost from the body.
The measurements showed that there was no change or a small loss of mass.
https://en.wikipedia.org/wiki/21_grams_experiment

Also, a change in mass would (because of the Einstein relation E=MC^2) require a change in energy.
But the conservation of energy makes that impossible- so there can not be a change in mass.

Reality.
The question is why you disagree with it.

[Bored chemist]

It is real

You have not provided any evidence of this.
You just keep saying it is true.
But it is not true.

[Yahya A.Sharif (OP)]

You have not provided any evidence of this.

What evidence?

I presented an experiment that tell the truth. is it true or not and how" not theories or arguments"?
The scale reads 60+x kg, the added force is x when a person lifts his body then he pushes with the added x so the force pushing up  the body is x which is less than 60 kg

[Origin]

Quote from: Kryptid on Yesterday at 22:53:18

The physics of forces works the same for both living and non-living systems. What, do you think the human body suddenly becomes heavier when they die or something?

Yes.

Since Yahya A.Sharif has embraced magical thinking there is really no way to have a science discussion with him.

[Bored chemist]

Since Yahya A.Sharif has embraced magical thinking

He did that long ago.

It sounds like you are still going with the argument from ignorance. You are basically saying, "If I can't figure out how he did it logically through non-magical means, then he must have used magic to do it".

It is not supposed to be "non-magical" means it is supposed to be unknown means.
If I can not know how he did it through any means then he uses what I can call it magic.

[Kryptid]

Yes.

You can't be serious. That would violate conservation of mass if a human body suddenly got heavier out of nowhere just because they died.

I presented an experiment that tell the truth.

An experiment that you consistently misinterpret the results of.

I'll ask you again:  If you have two people pushing against each other, do you really believe the weaker person will win?

[Yahya A.Sharif (OP)]

An experiment that you consistently misinterpret the results of.

What is the x force on the scale ?
Why an x appears when I lift my body?
When I lift my body the x force appears, what is the relation between the force I press on the scale and the value of the x on the scale?

[Bored chemist]

An experiment that you consistently misinterpret the results of.

What is the x force on the scale ?
Why an x appears when I lift my body?
When I lift my body the x force appears, what is the relation between the force I press on the scale and the value of the x on the scale?

It is your "experiment".
You should be telling us what the outcome is.

[Kryptid]

An experiment that you consistently misinterpret the results of.

What is the x force on the scale ?
Why an x appears when I lift my body?
When I lift my body the x force appears, what is the relation between the force I press on the scale and the value of the x on the scale?

I'll answer that once you finally answer this:

I'll ask you again:  If you have two people pushing against each other, do you really believe the weaker person will win?

[alancalverd]

60 kg is a mass, not a force.

[Bored chemist]

60 kg is a mass, not a force.

True, but that's the least of his problems.
(So I'm not going to confuse  the issue by talking about Kgf)