- #1
Gabriel Maia
- 72
- 1
Consider this: We have a sphere rolling down a slant, released from some height h with null velocity. At the end of the slant its potential energy will have been fully converted to kinetic energy, part translational and part rotational.
Now consider this: at the end of the slant the ball enters a loop. As it travels around the loop reaching its top it will have a potential energy, alright, but more importantly for our present problem, it will have again a translational and a rotational kinetic energy. The rotational part is due to the ball spinning around its center (as it rolls along its path) or is it due to the rotation around the loop's center? Shouldn't be 2 rotationa kinetic energies?
Thank you
Now consider this: at the end of the slant the ball enters a loop. As it travels around the loop reaching its top it will have a potential energy, alright, but more importantly for our present problem, it will have again a translational and a rotational kinetic energy. The rotational part is due to the ball spinning around its center (as it rolls along its path) or is it due to the rotation around the loop's center? Shouldn't be 2 rotationa kinetic energies?
Thank you