a section of hollow pipe and a solid cylinder have the same radius, mass, and length. they both rotate about their long central axes with the same angular speed. which object has the higher rotational kinetic energy?

Question

04-11-2021
Physics

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a section of hollow pipe and a solid cylinder have the same radius, mass, and length. they both rotate about their long central axes with the same angular speed. which object has the higher rotational kinetic energy?

Sagot :

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hidalgodurandangelyy hidalgodurandangelyy · Answer 1 · 2021-11-04T19:02:29-04:00

Answer:

Teniendo dos tuberías, una hueca y otra sólida, con la misma masa, radio y longitud, ambas poseen la misma rapidez angular, entonces el cuerpo hueco tendrá mayor energía cinética rotacional que la tubería sólida, esto es debido a que el tubo hueco tiene mayor inercia rotacional.

La ecuación de energía rotacional viene dada como:

Er = (1/2)·I·ω

De esta manera tenemos que el tubo hueco tiene mayor inercia rotacional que el tubo sólido, por ende, mayor energía.

Explanation:

a section of hollow pipe and a solid cylinder have the same radius, mass, and length. they both rotate about their long central axes with the same angular speed. which object has the higher rotational kinetic energy?

Sagot :

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