Why this seesaw is working against physics laws

[vikram_gupta11]

Dear sir,
The height is 80 cm
So it is as per mgh= 80 joule
But you forget that the ball is also falling down at the time of reversing from 70 cm
So mgh= 70 Joule
So total output is 150 Joule
But input is only 60 Joule.
Now you say that time is important in it.
Yes time can be increased but input will be same as interesting ly there will be need of increasing very less input.
How input will be same.
I explain it.

In my experiment the box length is 80 cm and arm length is also 80 cm.
But if I take arm length 2 meter then I can take box length 2 meter also.
If I mount 60 cmlength of this 2 meter long boxthen the ball fall down from 2 meter height
So output will be
Mgh=200 Joule
Again reverse output
Mgh=190 Joule
So total output
200+190= 390 Joule

[vikram_gupta11]

you say that 1 gram can reverse the 100 lbs but I take counterweight 1 kilogram.
Now if 60 cm box length is mounted underfulcrumthen input
Mgh=10*10*.6=60 Joule
And 1 kilogram weight
Mgh=1*10*1=10 Joule

So total input is =70 Joule
Edit: counterweight=11 kg.or 1100 gram

[vikram_gupta11]

Dear sir,
There is double falling down of ball.inputbis single but output is double.the ball is falling down at the time of tilting and also reversing.
You say that it is not due to free fall but I have already mentioned that the hole and nail is not perfect as arm is getting twisted and working as a brake but if build perfectly then the leverage will be increased due to free fall.

[vikram_gupta11]

See the image.

[vikram_gupta11]

The sketch is clearly showing Overunity in this mechanism.
I used a massless box to increase the circumference in the video