Hello Edtharan, I cannot spell linear ha!
I enjoyed your answer to the hoverboard question back in February so I thought I would make you my first contact and post on this website. I'm creative but have no formal education however I have considered the basics of gyroscopic forces,angular momentun and procession, conservation of momentum, righthand rule ect...
My area of interst is angular momentun converted to linear momentum as result of collisions in order for momentum to be conserved, in general, so, since velocity is a vector, momentum is also a vector, pointing in the same direction as the velocity, of course. It turns out experimentally that in any collision between two objects (where no interaction with third objects, such as surfaces, interferes), the total momentum before the collision is the same as the total momentum after the collision. It doesn’t matter if the two objects stick together on colliding or bounce off, or what kind of forces they exert on each other, so conservation of momentum is a very general rule.
My question is can electric motors do enough work to accelerate enough mass in angular form to then be released in linear momentum to move a closed system through space by doing the work with electricity? does the equal and oppisite reaction somehow get absorbed in an angular form?
I,m looking for answer to the hoverboard ha.
Here is example of what I'm cosidering. momentum, was actually introduced by the French scientist and philosopher Descartes before Newton. Descartes’ idea is best understood by considering a simple example: think first about someone (weighing say 45 kg) standing motionless on high quality (frictionless) rollerskates on a level smooth platform. A 5 kg medicine ball is thrown directly at her by someone standing in front of her, and only a short distance away, so that we can take the ball’s flight to be close to horizontal. She catches and holds it, and because of its impact begins to roll backwards. Notice we’ve chosen her weight so that, conveniently, she plus the ball weigh just ten times what the ball weighs by itself. What is found on doing this experiment carefully is that after the catch, she plus the ball roll backwards at just one-tenth the speed the ball was moving just before she caught it, so if the ball was thrown at 5 meters per second, she will roll backwards at one-half meter per second after the catch.
It is tempting to conclude that the “total amount of motion” is the same before and after her catching the ball, since we end up with ten times the mass moving at one-tenth the speed but all things being equal if the person who threw the ball origanally is also on frictionless skates would they have moved backwards? and in equal momentum to the ball moving forward? (again conservation of momentum) so if the work done with the ball thrower was replaced with an electric motor spinning the ball angularly then releasing the ball linearly and the motor mounted on the platform and on rollerskates with frictionless bearings could the equal and oppisite reaction be converted to angular motion therefore hopefully moving a closed system through space by the ball catcher colliding wih a wall connected perpendicular to the platform and the platform also on rollerskates with frictionless bearings on a smooth floor with angular to linear momentum by having eleclectricty doing the work
or does the motor move backwards like the thrower would? and if hitting a wall also perpendicular to the platform would cause zero movement because of conservation of momentum all replies are appreciated.
I believe timing of the collisions with the walls could be a big consideration. The equal and oppiste reaction on a lenear plane is one of my biggest questions. I am just beginning to read and understand the angular momentum of a particle. If torque becomes a consideration I would say two identicle motors Spinning synchronously in opposite directions and shooting the ball simultaneously would hopefully counteract torque forces.
What is wrong or right with this idea? I will appreciate any input and debunking. like at the moment the ball is released is there an equal and opposite reaction on a linear plane? as far as the rotation of the (flywheel like launcher) does it speed up or slow down?
Could an electric space elevator be constructed?
al best
whirlwindhorse
