many people seem to believe here you can create a rotational momentum without creating an oposite momentum so they cancel each other if added together
they even get so mad at their own ignorance they keep deleting this post all time
the object will always move around the center of mass
you can't move the center of mass but you can rotate it through the use of precession
but i still don't see the reaction to the force of precesion at least no oposite to the rotation that produces the precesion
maybe precesion is...
to produce a translation from stillness you have to aply a force
the same can be said for rotation
if the force is to produce translation apears a reaction the oposite way that the force is aplied, said with another words an equivalent mass is pushed the oposite way
my question is where...
besides its been accepted in this forum that translation can be transformed into rotation
if translation is a force rotation must be a force since force doesn't disapear but transforms
to say that with interior work you can make an object go from stillness to rotating aceleration seems ackward to me since space is homogeneus and isotropic so it has no hooks
in what do you hold to acquire spinning aceleration if you don't acelerate anything the oposite way?
"Try this. Get a bicycle tire and put a couple of handles on the hubs. Spin the tire as fast as you can and sit down on a revolving chair (except make sure the chair is still). Turn the spinning tire over.
What happens? You'll find you can get some pretty good fine control on just how fast...
i realize of my mistake now but i had just thought of it during this thread by the way thanks a lot faust
so all you can get from a still Earth and moon is potentiall energy or they spinning in oposite direction
now consider the spinning vectors of Earth and moon as pencils which points...
the ball spins one sense first and when it rebounds spin the oposite sense coiling in the other direction
so first you spin the Earth in one sense when you first hit the ball, the ball rebounds so it brakes the earth, rebounds again making the Earth rotate again in the same initial sense it...
thats my point you hit the ball the Earth rotates oposite to the ball, the ball hits the pole it stops the earth, the ball rebounds so it hits the pole again after a while but going the other direction the Earth spins again, the ball rebounds again and hits the pole again stoppin the Earth once...
very interesting read
but imagine the whole Earth was just 1 kg mass then the rotation would be considerable
but i still don't see why Earth seems to acquires rotation by internal forces which i think is considered imposible
i still don't see how a rebounding theter ball works
the Earth is still and i push the theter ball so the Earth rotates the oposite direction of the push
then the ball hits the stick braking the Earth's rotation initiated when i pushed first the ball
then the ball rebounds and spins the...
that sounds just logical to me the spin you get in the end is canceled by the spin its produced in the begining
but what would happen if i have a theterball that besides pulling the ball it also let's the ball away after it hits the stick by rebounding
if the stick is very thick so the...