Play trebuchet...

[iacob alex]

.....as a stimulating game of your imagination ,alike that of :

www.youtube.com/watch?v=KQvyoUQopYQ

...but keep in mind the variable arm of a possible gravity motor...

A new hope for our so old PM puzzle ,can be this young generation :fresh mind and joyful desire to know about anything !

All the best! / Alex

[iacob alex]

.....as we can see the theoretical considerations ,at :

http://web.vu.union.edu/~stodolan/trebuchet/theory.html

.....and if possible , make a simple comparison of two momentums (mass*velocity ) : M*v vs. m*V ,where :

-M/counterweight mass (we know it )

-m/projectile mass (we know it )

-v/velocity of counterweight in the bottom point (we must measure it )

-V/velocity of projectile in the launching point (we must measure it )

If M*v < m*V... have we the first "key" ?

All the best ! / Alex

[iacob alex]

.....with a rigid variable arm :
http://fusion360.autodesk.com/projects/trebuchet
It can help us , to imagine a working device for our topic...in my opinion.


Al_ex