If the bearings are friction-less they have no means to apply any torque along the spin axis. So if there is also no drag on the rest of the wheel, it will maintain its kinetic energy.SpaceThoughts said:(if we forget about friction)
Rest assured, energy will be conserved. You should depend on that to form the next logical question --- where does the energy go?SpaceThoughts said:I’ve been thinking a lot about the experiment done in the video above, and to me it seems we are losing energy every time we recycle the experiment, questioning conservation of energy.
That is what I am asking here. There seems to be no heat loss. Comparing the start scenario with the end scenario shows a difference.anorlunda said:Rest assured, energy will be conserved. You should depend on that to form the next logical question --- where does the energy go?
What about the hands of the man? Work done by or on the hands. Have you accounted for that?SpaceThoughts said:That is what I am asking here. There seems to be no heat loss. Comparing the start scenario with the end scenario shows a difference.
This is way to vague to analyse energy and work done.SpaceThoughts said:The robot performs two actions during the experiment:
1. Turning the wheel upside down, using the potential energy from the first spring to perform this action.
2. Turning the wheel back again to its original position, using the potential energy of the second spring to
Nice expression, and thanks for spending your time on me:-)anorlunda said:What about the hands of the man? Work done by or on the hands. Have you accounted for that?
See @vanhees71 answer in #3.
In what way? The setup is quite simple ...A.T. said:This is way to vague to analyse energy and work done.
The spinning wheel maintains its rotation through the conservation of angular momentum. This means that the wheel will continue to spin at a constant rate unless acted upon by an external force.
Kinetic energy is the energy an object possesses due to its motion. In the case of the spinning wheel, its rotation creates kinetic energy. The faster the wheel spins, the more kinetic energy it has.
The maintenance of the spinning wheel's rotation is affected by several factors, including the initial force used to spin the wheel, the mass and shape of the wheel, and any external forces acting upon the wheel, such as friction or air resistance.
In theory, the spinning wheel's rotation will continue indefinitely due to the conservation of angular momentum. However, in reality, external forces such as friction and air resistance can slow down and eventually stop the wheel's rotation.
The spinning wheel's rotation is an important concept in physics and is used to explain other phenomena, such as the movement of planets, gyroscopic stability, and the behavior of spinning tops. It also helps us understand the relationship between energy, motion, and forces.